Al-Muwatta de Malik, 1312

Zaid Abou Ayach a rapporté qu'il a demandé Sa'd Ibn Abi Waqas au sujet de l'échange de l'orge contre le seigle»? Sa'd lui dit: «lequel est plus valable»? Zaid répondit: «C'est bien l'orge». Sa'd le lui interdit et dit: «J'ai entendu l'Envoyé d'Allah (salallahou alayhi wa salam) r (Sur lui la grâce et la paix d'Allah) dire au sujet de l'échange des dattes fraîches contre les sèches: «Les dattes fraîches, une fois séchées, perdront-elles de leurs poids»? On lui répondit que oui, l'Envoyé d'Allah (salallahou alayhi wa salam) (Sur lui la grâce et la paix d'Allah) interdit ce genre d'échange». Chapitre XIII De la «mouzabana» et «al-mouhaqala»

Yahya related to me from Malik from Abdullah ibn Yazid that Zayd ibn Ayyash told him that he had once asked Sad ibn Abi Waqqas about selling white wheat for a type of good barley. Sad asked him which was the better and when he told him the white wheat, he forbade the transaction. Sad said, "I heard the Messenger of Allah, may Allah bless him and grant him peace, being asked about selling dried dates for fresh dates, and the Messenger of Allah, may Allah bless him and grant him peace, said, 'Do the dates diminish in size when they become dry?' When he was told that they did, he forbade that