And al-Bukhārī records, on the authority of Anas, that the Prophet ﷺ stayed with Banū ʿAmr ibn ʿAwf and remained among them for fourteen nights. He then sent for Banū al-Najjār, and they came to him.

During that period he established the bond of brotherhood between the Emigrants and the Helpers. It was also then that the obligatory almsgiving (zakāt) was ordained. The rabbi ʿAbd Allāh ibn Salām embraced Islam, as did a number of other Jews, whereas the rest of the Jewish community persisted in unbelief.