There was a stone image, called Al-Lat, adorned with costly vestments and precious stones, was an object of worship, and esteemed to be one of the daughters of God. Here Mohammad preached to unwilling ears, and met with nothing but opposition and scorn from the chief men, which soon spread to the populace. He was driven out of the town, maltreated, and wounded. He could not return to and enter Mecca unless protected by Mut-im, a chief of the blood of Abd Shams. At the yearly pilgrimage, a little group of worshippers from Medina was attracted and won over by the preaching of Islam; and the following year it increased to twelve. They met Mohammad and took an oath of allegiance. A teacher was deputed by Mohammad to Medina, and the new faith spread there with a marvellous rapidity. Again the time of pilgrimage arrived, and more than seventy disciples from Medina pledged themselves to receive and defend him at the risk of their lives and property. This was all done in secret; but the Koreish, having got notice of it, renewed such severities and persecutions, including, in some cases, imprisonment, as hastened the departure of the Moslems to Medina, their city of refuge. [Sidenote: 5. The Hegira.] Mohammad, being much troubled by the intolerance of the people and the personal safety and security of himself and his followers being endangered, and mutual intercourse denied, saw that it was hopeless to expect any forbearance on the part of the Koreish, who would not permit him to live and preach his religion at home, and looked for assistance and protection from a strange land. He asked the people of Medina to receive and protect him. The Medina converts, who had come to Mecca on pilgrimage, pledged themselves to Mohammad, and promised to defend him as they would defend their wives and children. The Medina converts, although not acting on the offensive, became at once objects of suspicion to the Koreish, who endeavoured to seize those who were in Mecca. They maltreated one of the Medina converts who fell into their hands, and the work of persecution was recommenced in right earnest.[160] Two months elapsed before the believers, except those detained in confinement or who were unable to escape from slavery, or women and children, could emigrate. Families after families silently disappeared, and house after house was abandoned. One or two quarters of the city were entirely deserted. The Koreish held a council and proscribed Mohammad, who escaped together with Abu Bakr, leaving Ali in his house, around whom, to lull the suspicions of his neighbours, he threw his own mantle, and desired him to occupy his bed. Mohammad and his follower took refuge in a cave. The Koreish despatched scouts in all directions to search for Mohammad, but in vain. After hiding for three days in the cave, Mohammad and Abu Bakr started for Medina, where they arrived safely.