But he could not stay long in Coba, while the final assay upon the Medinans remained to be undertaken, and so we find him on the fourth day of his sojourn making preparations for the entry into the city. It was undertaken with some confidence of success from the messages already sent to Coba, and proved as triumphal an entry as his former one. The populace awaited him in expectation and reverence, and hailed him as their Prophet, the mighty leader who had come to their deliverance. They surrounded his camel Al-Caswa, and the camels of his followers, and when Al-Caswa stopped outside the house of Abu Ayub, Mahomet once more received the beast's augury and sojourned there until the building of the Mosque. As Al-Caswa entered the paved courtyard, Mahomet dismounted to receive the allegiance of Abu Ayub and his household; then, turning to the people, he greeted them with words of good cheer and encouragement, and they responded with acclamations. For seven months the Prophet lodged in the house of Abu Ayub, and he bought the yard where Al-Caswa halted as a token of his first entry into Medina, and a remembrance in later years of his abiding place during the difficult time of his inception. The decisive step had been taken. The die was now cast. It was as if the little fleet of human souls had finally cast its moorings and ventured into the unpathed waters of temporal dominion under the command of one whose skill in pilotage was as yet unknown. Many changes became necessary in the conduct of the enterprise, of which not the least was the change of attitude between the leader and his followers. Mahomet, heretofore religious visionary and teacher, became the temporal head of a community, and in time the leader of a political State. The changed aspect of his mission can never be over-emphasised, for it altered the tenor of his thoughts and the progress of his words. All the poetry and fire informing the early pages of the Kuran departs with his reception at Medina, except for occasional flashes that illumine the chronicle of detailed ordinances that the Book has now become.