Abu Sa'id said that Bilal brought the Prophet some barni* dates, and when he asked him where he had got them he replied, "I had some inferior dates, so I sold two sa's of them for a sa." He said, "Ah, the very essence of usury, the very essence of usury. Do not do so, but when you wish to buy, sell the dates in a separate transaction, then buy with what you get." (Bukhari and Muslim.) * A type of dates of the best quality, sweet and luscious, red tinged with yellow.
Reported by Al-Bukhari (No. 2312) and Muslim (No. 1594a). Cited in Mishkat al-Masabih (No. 2814).
Abu Sa‘īd al-Khudri (may Allah be pleased with him) reported: Once Bilāl brought some Barni dates to the Prophet (may Allah's peace and blessings be upon him) who asked him, "Where did you get these dates?" Bilāl replied: "I had some inferior type of dates, and I exchanged two Sā‘s of it for one…