"Allah Akbar! truly when I light upon the coasts of any people, woe unto them in that day."

Then he assembled all his men and put the sacred eagle standard at their head, the white standard with the black eagle embossed, wrought out of the cloak of his wife, Ayesha. He bade them lead the assault upon Kamuss and spare nothing until it should fall to them. In the carnage that followed Marhab, chief of Kheibar, was slain, and at length the Jews were beaten back with terrible loss. There was now no hope left: the fortress Kamuss must fall, and with it the last resistance of the Jews. Their houses, goods, and women were seized, their lands confiscated. Kinana, the chief who had dared to try and originate a coalition previously against Mahomet, was tortured by the burning brand and put to death, while Safia, his seventeen year old bride, passed tranquilly into the hands of the conqueror. Mahomet married her and she was content, indeed rejoiced at this sudden change; for, according to legend, she had dreamed that such honour should befall her.

But all the women of the Jews were not so complacent, and in Zeinab, sister of Marhab, burned all the fierceness and lust for revenge of which the proud Hebrew spirit is capable. She would smite this plunderer of her nation, though it might be by treacherous means. Had he not betrayed her kindred far more terribly upon the bloody slaughter ground of the Koreitza? She prepared for his pleasure a young kid, dressed it with care, and placed it before him. In the shoulder she put the most effective poison she knew, and the rest of the meat she polluted also. When Mahomet came to the partaking he took his favourite morsel, the shoulder, and set it to his lips. Instantly he realised the tainted flavour. He cried to his companions:

"This meat telleth me it is poisoned; eat ye not of it."

But it was too late to save two of the Faithful, who had swallowed mouthfuls of it. They died in tortures a few hours afterwards. Mahomet himself was not immune from its poison. He had himself bled at once, and immediate evil was averted. But he felt the effects of it ever after, and attributed not a little of his later exhaustion to the poisoned meats he had eaten in Kheibar. The woman was put to death horribly, and the Muslim army hastened to depart from the ill-omened place.

They returned to Medina after several months absence, and there the spoil was divided. The land as usual was given out to Muslim followers, or the Jews were allowed to keep their holdings, provided they paid half the produce as tribute to Mahomet. Half the conquered territory, however, was reserved exclusively for the Prophet, constituting a sort of crown domain, whence he drew revenues and profit. Thus was temporal wealth continually employed to strengthen his spiritual kingdom and put his faith upon an unassailable foundation.

The expedition to Kheibar saw the promulgation of several ordinances dealing with the personal and social life of his followers. The dietary laws were put into stricter practice; the flesh of carnivorous animals was forbidden, and a severer embargo was laid upon the drinking of wine—the result of Mahomet's knowledge of the havoc it made among men in that fierce country and among those wild and passionate souls. Henceforward also the most careful count was kept of all the booty taken in warfare, and those who were discovered in the possession of spoil fraudulently obtained were subject to extreme penalties. All spoil was inviolate until the formal division of it, which usually took place upon the battlefield itself or less frequently within Medina. The Prophet's share was one-fifth, and the rest was distributed equally among the warriors and companions. Since Islam derived its temporal wealth chiefly by spoliation, the destiny of its plunder was an important question and gave rise to frequent disputes between the Disaffected and the Believers which are mentioned in the Kuran. By now, however, the malcontents were for the most part silenced, and we hear little disputation after this as to the apportionment of wealth.

With the return to Medina came the inaugury of Mahomet's extension of diplomacy—the dream which had filled his mind since the tide of his fortunes had turned with the Kureisch failure to capture his city. The year 628, the first year of embassies, saw his couriers journeying to the princes and emperors of his immediate world to demand or cajole acknowledgment of his mission. A great seal was engraved, having for its sign "Mahomet, the Prophet of God," and this was appended to the strange and incoherent documents which spread abroad his creed and pretensions.

The first embassy to Heraclius was sent in this year summoning him to follow the religion of God's Prophet and to acknowledge his supremacy. At the same time the Prophet sent a like missive to the Ghassanide prince Harith, ally of Heraclius and a great soldier. The envoys were treated with the contempt inevitable before so strange a request from an unknown fanatic, and Heraclius dismissed the whole matter as the idle word of a barbarian dreamer. But Harith, with the quick resentment harboured by smaller men, asked permission of the Emperor to chastise the impostor. Heraclius refused; the embassy was not worthy of his notice, and he was certainly determined not to lose good fighting men in a useless journey through the desert. So Mahomet received no message in return from the Emperor, but the omission made no difference to his determination to proceed upon his course of diplomacy.

He then sent to Siroes of Persia a similar letter, but here he was treated more rudely. The envoy was received in audience by the king, who read the extraordinary letter and in a flash of anger tore it up. He did not ill-treat the messenger, however, and suffered him to return to his own land.