A new standard was planted in the court of the Great Mosque, and urgent proclamation made that soldiers for the campaign in Irâc were to rally round it. Then followed the oath of fealty to Omar, which was taken by all who were in and around the city, and not completed for three days. Meanwhile, so great a fear of Persian pomp and prowess had fallen on the people, that none responded to the military call. Seeing this, Mothanna harangued them in a stirring speech. He told them of his victories, the endless plunder, the captives, male and female, and the fruitful lands which they had already spoiled the enemy of; ‘and the Lord,’ he added, ‘waiteth but to give the rest into your hands.’ Warmed by his discourse, and stung by the indignant invectives of Omar, men began at last to offer. The first who came forward was Abu Obeid, a citizen of Tâyif; and then numbers crowded to the standard. When they had reached a thousand, those around began to say to Omar: ‘Now choose thee one of the chiefest among them to be Ameer—a veteran Companion of the Prophet,—Refugee, or Citizen.’[200] ‘That I will not,’ said Omar. ‘Wherein doth the glory of the Companions consist but in this, that they were the first to rally round the Prophet? But now ye are backward, and come not to the help of the Lord. Such as be ready for the burden, whether it be light or whether it be heavy, these have the better claim. Verily I will give the command to none but to him that first came forth.’ Then turning to Abu Obeid: ‘I appoint thee,’ he said, ‘over this force, because thou wast the first to offer; and in eagerness for battle is the Arab’s glory.’ Nevertheless, he earnestly enjoined upon him ever to take counsel with the Companions of the Prophet, and to associate them with him in the conduct of affairs. So the force started for Irâc. At the same time Omar removed the ban against the employment of the once apostate tribes; and bade Abu Obeid to summon to his standard all, without distinction, who since the apostasy had made a good profession. Mothanna, with a lightened heart, hastened back in advance of Abu Obeid, and returned to Hîra after the absence of a month.

Rustem rouses the Persians against the invaders.

During this period, while Mothanna was away, further changes were transpiring at the unhappy court of Persia. Prince and princess succeeded one another in the midst of bloodshed and rebellion, till at last a royal lady named Burân summoned Rustem, a general of renown, from Khorasan, and by his aid established herself as Regent upon the throne.[201] Rustem was an astrologer, and knew from the conjunction of the planets the impending fate of Persia. When asked why then he had linked himself with a doomed cause, he answered that it was the love of pomp and riches. Amidst such silly tales, of which there is no lack, we may discern the lineaments of a prince brave in the field, but proud and overweening. Such was the man whose authority Burân now proclaimed supreme. His energy was soon felt. The nobles rallied round him; the great landholders were incited to rise against the invaders, and Mesopotamia, with the Sawâd and delta, speedily cast off the Moslem yoke. Two columns were despatched from Medâin, one under Jabân to cross the Euphrates and advance on Hîra; the other under Narsa to occupy Kaskar between the Euphrates and Tigris. The people flocked to their standard, and the position of the Moslems again became precarious.

Mothanna, thus threatened, called in his forces, but they were too few to oppose the enemy; so he abandoned Hîra, and falling back on Khaffân, by the border of the desert, on the road to Medîna, there awaited Abu Obeid. Abu Obeid gains a victory over the Persians. Shaban, A.H. XIII. October, A.D. 634.But he had to wait some time. Swelled by reinforcements from the tribes by the way, and, burdened by their families, it was a month before the army made its appearance there. After a few days’ repose at Khaffân, Abu Obeid took command of the combined force, and, attacking Jabân, put him to flight. Then crossing the Euphrates, he surprised Narsa, who was strongly posted at a royal date-grove near to Kaskar, and, routing his army, took possession of his camp, with much spoil. Great store of dates fell into their hands, of a rare kind, reserved for royal use. These were distributed among the army, and became the common food of all. With the royal Fifth, a portion of them was sent to Medîna: ‘Behold,’ wrote Abu Obeid to his Master, ‘the food wherewith the Lord hath fed us, eaten heretofore only by the kings of Persia. We desired that thou shouldest see the same with thine own eyes, taste it with thine own lips, and praise the Lord for his grace and goodness in giving us royal food to eat.’ Jalenûs, another general, coming up too late to the help of Narsa, was also discomfited; and the unfortunate delta, prey to alternate conquest and defeat, began again to acknowledge Moslem sway. The neighbouring chiefs brought in their tribute, and, in proof of loyalty, made a feast of good things for Abu Obeid. But he declined to partake of it, unless shared equally with his soldiers. A further supply of the same delicacies was therefore furnished, and the whole army sat down with him to the repast. His determination to taste none of the Persian viands but in company with the rank and file of his men redounded greatly to his popularity.[202]

Bahmân sent with great army against Abu Obeid. A.H. XIII. Autumn A.D. 634.

Enraged at the defeat of his generals, Rustem assembled a still larger force under the warrior Bahmân.[203] To mark the gravity of the crisis, the great banner of the empire, made of panthers’ skins, was unfurled,[204] and an array of war elephants accompanied the army. Jalenûs, too, was sent back to fight, under the threat that if again he fled before the enemy, he would be put to death. Before this imposing host, the Arabian army fell back, and, recrossing the Euphrates, took up ground on the right bank. Bahmân, following, encamped at Coss Nâtick, on the opposite shore. The field of battle was not far from Babylon, and, being on the highway between the Capital and Hîra, a bridge of boats spanned the river near the spot.[205] Bahmân, in his pride, gave Abu Obeid the option of crossing the river unopposed, thus leaving him the choice of either bank for the impending action. Abu Obeid desired to take the offer and pass over to the other side. His advisers strongly opposed the movement, and sought to dissuade him from quitting their more advantageous ground. But he made it a point of honour; and exclaiming, ‘Shall we fear death more than they?’ gave the order at once to cross. They found the ground upon the farther side confined; and, though they were under 10,000 men, there was little room to manœuvre, and nothing but the bridge to fall back upon. Battle of the Bridge. Shabân, A.H. XIII. October, A.D. 634.[206]The unwieldy elephants, with their jingling bells and trappings, spread confusion among the Arab cavalry. The riders, however, dismounting, went bravely at them on foot, and tried, with some success, to cut the bands of the howdas, and drive them from the field. Abu Obeid singled out the fiercest, a white elephant, with great tusks, and rushed at it, sword in hand. While vainly endeavouring to reach some vulnerable part, the huge beast caught him with its trunk, and trampled him to death. Consternation seized the ranks at the horrid spectacle. One after another the captains whom Abu Obeid had named to meet disaster, were slain,[207] and the troops began to waver. Just at this moment, a soldier of the Beni Thackîf,[208] appalled at the fate of Abu Obeid and other leaders of his clan, ran to the bridge, and crying out, Die, as your chiefs have died, or conquer, cut the first boat adrift. Exit thus closed, the panic spread. The Moslems were hemmed in, and driven back upon the river. Many leaped in, but few reached the other shore of the deep swift stream.[209] At this eventful moment Mothanna rushed to the front. Backed by a few heroic spirits, among them a Christian chief of the Beni Tay,[210] he seized the banner, and, planting himself between the enemy and the bewildered Arabs, called out that he would hold the ground till all had passed securely. Then he chided the Thackîfite for what he had done, and commanded the bridge to be restored. ‘Destroy not your own selves,’ he cried; ‘retire in order, and I will defend you.’ While thus bravely holding the Persians at bay, the thrust of a lance imbedded several rings of his armour in a deep and dangerous wound. Heedless of the pain, he stood heroically to his ground endeavouring to calm his panic-stricken men. But in vain. The Moslems routed.The confusion increased, and before order could be restored, a vast number had perished in the river. At last the native boatmen were made to refit the bridge, and a remnant escaped across it; but four thousand were either swept off by the flood, left dead upon the field, or borne wounded over the bridge. Of the new levies, two thousand, stung with remorse, fled from the terrible field, away to their homes in Arabia; and Mothanna, again assuming the command, was left with only three thousand men. After the battle, Bahmân was on the point of crossing the river to follow up his victory. Had he done so, it would have fared badly with Mothanna and the wounded disheartened remnants, who still held their ground on the opposite bank. But fortunately for them, just at that moment, news reached Bahmân of a revolt at Medâin; and so, relinquishing his design, he hastened, in support of his master, back to the distracted capital.[211] Mothanna retires on Allîs.With the relics of his army, Mothanna fell back upon Allîs, farther down the river; and there, for the time, fixing his head-quarters, bravely defended his first conquests. The cause of Islam looked dark; but a hero like Mothanna would not despair. Mindful of his early tactics, he sought to recruit his diminished ranks from the surrounding coasts; so, rallying around him the tribes of kindred race, before long he regained a firmer footing.

Jabân taken prisoner and beheaded.

Jabân, unaware of the General’s hasty recall to Medâin, and supposing the Arabs to be in full flight before the conquering host, followed in pursuit. He had before been taken prisoner and obtained his ransom by deceit.[212] Crossing now the river, he was cut off by the Arabs, and, with his column, was taken prisoner by Mothanna. The people also of Allîs brought many of the stragglers into the Moslem camp. These were all beheaded. At a later period, Allîs had special grace shown it for this service.

How the tidings of defeat were received at Medîna.

Omar received with calmness the tidings of the disaster. Abu Obeid’s levies kept on their flight till they reached their homes; and when those from Medîna returned there, they covered their faces with shame. The Caliph spoke comfortably to them. ‘Verily,’ he said, ‘I am a defence to every believer that faceth the enemy and misfortune overtaketh him. The Lord have mercy on Abu Obeid, and be gracious unto him. Had he survived, and taken refuge from the foe on some sandy mound, I surely would have been his advocate and defender.’ Muâdz, reciter of the Corân, was among those who fled. Shortly after, when, in the course of recitation, he came to this verse: ‘Whosoever in the field shall give his back to the enemy (excepting again to join in the battle), or shall turn aside unto another party, verily he draweth the wrath of God upon him; his refuge shall be hell-fire—an evil end!’[213] And he lifted up his voice and wept. Omar addressed him kindly: ‘Weep not, O Muâdz,’ he said, ‘thou hast not “turned aside unto another party”; thou hast turned aside to none but unto me.’ Such was the spirit of these Moslem heroes, even in defeat. The reverse had no other effect than to nerve the Caliph to redoubled effort; and the cry for a levy en masse soon resounded over the whole peninsula. The reinforcements, in response to this new call, would, however, have been too late to help Mothanna if (fortunately for Islam) earlier succour had not reached him.