But in spite of the seemingly favourable situation, the leader tarried because "the Lord had not as yet given him command to emigrate." The very natural hesitation of Mahomet is only characteristic of him. He knew very well what issues were at stake, and was not anxious to burn his boats rashly; indeed, he bore upon his shoulders at this time all the responsibility of the future of his little flock, who so confidently resigned their fortunes into his hands. If his scheme at Medina should fail, he knew that nothing would save him from Kureischite fury, and he also felt great reluctance in leaving Mecca himself, for at that time it could not but mean the knell of his hopes of gaining his native city to his creed. He must have foreseen his establishment of power in Medina, and possibly he had visions of its extension to neighbouring tribes, but he could not have foreseen the humiliation of his native city at his feet, glad at last to receive the faith of one whom she now regarded as the sovereign potentate of Arabian territory.

And with their friend and guide remained Abu Bekr and Ali—Abu Bekr because he would not leave his companion in prayer and persecution, and Ali because his valour and enthusiasm made him a protector against possible attacks. Here was the opportunity for the Kureisch. They knew the extent of the emigration, and that Abu Bekr and Ali were the only Muslim of importance left except the Prophet. They determined to make one last attempt to coerce into submission this fantastic but resolute leader, who possessed in supreme measure the power of winning the faith and devotion of men.

Tradition has it that Mahomet's assassination was definitely planned, and Mahomet assuredly thought so too, when he discovered that a man from each tribe had been chosen to visit his home at night. The motive can hardly have been assassination, but doubtless the chiefs were prepared to take rather strong measures to restrain Mahomet, and this action finally decided the Prophet that delay was dangerous.

At this crisis in his fortunes he had two staunch helpers, who did not hesitate to risk their lives in his service, and with them he anticipated his foes. Ali was chosen to represent his beloved master before the menaces of the Kureisch. Mahomet put him into his own bed and arrayed him in his sacred green mantle; then, as legend has it, taking a handful of dust, he recited the sura "Ya Sin," which he himself reverenced as "the heart of the Kuran," and scattering the dust abroad, he called down confusion upon the heads of the Unbelievers. With Abu Bekr he then fled swiftly and silently from the city and made his way unseen to the cave of Thaur, a few miles outside its boundaries.

Around the cave of Thaur cluster as many and as beautiful legends as surround the stable at Bethlehem. The wild pigeons flew out and in unharmed, screening the Prophet by their untroubled presence from the searchings of the Kureisch, and a thorn tree spread her branches across the mouth of the cave supporting a spider's frail and glistening web, which was renewed whenever a friend visited the two prisoners to bring food and tidings.

Here Mahomet and Abu Bekr, henceforward known as the "Second of Two," remained until the fierceness of the pursuit slackened. Asma, Abu Bekr's daughter, brought them food at sundown, and what news she could glean from the rumours that were abroad, and from the lips of Ali. There was very real danger of their surprise and capture, but once more Mahomet's magnificent faith in God and his cause never wavered. Abu Bekr was afraid for his master:

"We are but two, and if the Kureisch find us unarmed, what chance have we?"

"We are but two," replied Mahomet, "but God is in the midst a third."

He looked unflinchingly to Allah for succour and protection, and his faith was justified. His thanksgiving is contained in the Kuran: "God assisted your Prophet formerly, when the Unbelievers drove him forth in company with a second only; when they two were in the cave; when the Prophet said to his companion, 'Be not distressed; verily God is with us.' And God sent down his tranquillity upon him and strengthened him with hosts ye saw not, and made the word of those who believed not the abased, and the word of God was the exalted."

At the end of three days the Kureischite search abated, and that night Mahomet and Abu Bekr decided to leave the cave. Two camels were brought, and food loaded upon them by Asma and her servants. The fastenings were not long enough to tie on the food wallet; wherefore Asma tore her girdle in two and bound them round it, so that she is known to this day among the Faithful as "She of Two Shreds." After a prayer to Allah in thanks for their safety, Mahomet and Abu Bekr mounted the camels and sallied forth to meet what unknown destiny should await them on the road to Medina. They rapidly gained the sea-coast near Asfan in comparative safety, secure from the attacks of the Kureisch, who would not pursue their quarry so far into a strange country.