I went along with the Prophet (ﷺ) to Khaibar so as to serve him. (Later on) when the Prophet (ﷺ) returned, he on seeing the Uḥud mountain, said, "This is a mountain that loves us and is loved by us." [Then he pointed towards Al-Madina with his hand and said, "O Allâh ! Make the area which is in between Al-Madina's two mountains a sanctuary, as Ibrâhim (Abraham) made Makka a sanctuary. O Allâh ! Bless us in our ' and Mûdd (i.e. units of measuring).] [4:139-O.B]