Ibn 'Umar reported: I heard 'Umar b. Khattab delivering sermon on the pulpit ol Allah's messenger (ﷺ) and saying': Now, coming to the point, O people, there was revealed (the command pertaining to the prohibition of wine) and it was prepared (at that time) out of five things: grape, date, honey, wheat, barley, and wine is that which clouds the intellect, and, O people, I wish Allah's Messenger (ﷺ) had explained to us in greater detail three things: the inheritance of the grandfather, of one who dies without leaving any issue, and some of the problems of interest.