Abu Nadra reported: I asked Ibn Umar (RA) and Ibn Abbas (RA) about the conversion of gold with gold but they did not find any harm in that. I was sitting in the company of Abd Said al-Khudri (RA) and asked him about this exchange, and he said: Whatever is addition is an interest. I refused to accept it on account of their statement (statement of Ibn Abbas and Ibn Umar). He said: I am not narrating to you except what I heard from Allahs Messenger ﷺ . There came to him the owner of a date-palm with one sa of fine dates, and the dates of Allahs Apostle ﷺ were of that colour. Allahs Apostle ﷺ said to him: Where did you get these dates? I went with two sas of (inferior dates) and bought one sa of (these fine dates), for that is the prevailing price (of inferior dates) in the market and that is the price (of the fine quality of dates in the market), whereupon Allahs Messenger ﷺ said: Woe be upon you! You have dealt in interest, when you decide to do it (i. e. exchange superior quality of dates for inferior quality) ; so you should sell your dates for another commodity (or currency) and then with the help of that commodity buy the dates you like. Abu Saad said: When dates are exchanged for dates (with different qualities) there is the possibility (of the element of) interest (creeping into that) or when gold is exchanged for gold having different qualities. I subsequently came to Ibn Umar and he forbade me (to do it), but I did not come to Ibn Abbas; (RA) . He (the narrator) said: Abu as-Sahba narrated to me: He asked Ibn Abbas (RA) in Makkah, and he too disapproved of it.