After the erection of the mesjid, Mohammed ordered houses to be built around it for himself and Aly and the rest of the Muhâjerees; and they all had their doors open towards the mesjid. Jibrâeel now descended and said to Mohammed, God commands you to order all the doors opening towards the mesjid to be closed up, except your own and that of Aly. Hamzah was enraged at this order, and said, Aly is younger than myself, and is my nephew. The prophet replied, Do not be vexed, my uncle, for it is not my doing, but the Most High has commanded it. I am satisfied, rejoined Hamzah, and commit myself to God and the prophet.
It is related in the commentary entitled Mejma-ul-Byân, that when islam was spreading in Medeenah, before the Hijret, the Ansârees said among themselves, The Yehoodees have a day, Shembah, (Saturday) on which they assemble weekly for worship, and the Nasârâ also have a day for the same purpose, namely, Yek-shembah. (Sunday) Let us likewise have a fixed day for assembling to worship, and rendering thanksgiving to God. Accordingly they appointed Jumah, (Friday,) which, in these times, was called Arveenah, which day received the name Jumah, from its being the day for religious convocation. At this period, Asad-bin-Zarârah led the prayers of the Musulmâns, gave them a discourse and exhortation, and sacrificed a sheep for them, which served the party for breakfast and dinner, as they were but few in number. Subsequently, the Most High sent the verse relating to Jumah:""O true believers, when ye are called to prayer on the day of the assembly, hasten to the commemoration of God and leave merchandising. This will be better for you if ye knew it." (Surah 62:9). But the first Jumnah kept by the Musulmâns was that of Asad, and the first observed by the prophet was after his arrival at Medeenah. He came to Kubâ on Monday, where he laid the foundation of a mesjid and remained till Friday, or Jumah, when he started for Medeenah and performed the Jumah prayers at the mesjid of Benee Sŕlim, which is in the midst of the wâdy.