Sahih Muslim The Book of Musaqah Ma'mar bin 'Abdullah Sahih Sell it, and then buy with it barley. The slave went away and he got a sa’ (of barley) and a part of sa’ over and above that. When he came to Ma’mar he informed him about that, whereupon Ma’mar said to him: Why did you do that? Go back and return that, and do not accept but weight, for weight, for I used to hear from Allah’s Apostle (ﷺ) as saying: Wheat for wheat and like for like. He (one of the narrators) said: Our food in those days consisted of barley. It was said to him (Ma’mar) that (wheat) is not like that (barley). He replied: I am afraid these may not be similar https://parallelquran.com/hadith/sahih-muslim-3951/ Sahih Muslim The Book of Musaqah Ma'mar bin 'Abdullah Sahih He who hoards is a sinner. It was said to Sa`id (b. al-Musayyib): You also hoard. Sa`id said: Ma`mar who narrated this hadith also hoarded. https://parallelquran.com/hadith/sahih-muslim-3993/ Sahih Muslim The Book of Musaqah Ma'mar bin 'Abdullah Sahih No one hoards but the sinner. https://parallelquran.com/hadith/sahih-muslim-3994/ Sahih Muslim The Book of Virtues Ma'mar bin 'Abdullah Sahih I said to Zuhri: What does (the word) al-‘Aqib imply? He said: One after whom there is no Prophet, and in the hadith transmitted on the authority of Ma’mar and ‘Uqail there is a slight variation of wording. https://parallelquran.com/hadith/sahih-muslim-5951/