The Prophet ﷺ forbade the sale of grain until it has passed through two measurings by the sa, so that the seller bears any shortfall and gains any surplus.
نهي النبي ﷺ عن بيع الطعام حتى يجري فيه الصاعان، فيكون للبائع الزيادة، وعليه النقصان.
Bazzar narrated it, in Kashf Astar (1265), and Bayhaqi (5/316), both from the hadith of Muslim bin Abu Muslim Jarmi, who said, our teacher Makhlad bin Husayn related to us, from Hisham, from Muhammad bin Sirin, from Abu Hurairah, who mentioned it. Bazzar said, "We do not know of it from Abu Hurairah except through this route, Makhlad narrated it alone from Hisham."Haythami said in Majma (4/98), "It contains Muslim bin Abu Muslim Jarmi, whom I have not found anyone to provide a biography for, and the rest of its narrators are the narrators of sahih." That is what he said, even though Ibn Hibban mentioned him in Thiqat (9/158) and said, "He may sometimes err." Khatib gave his biography in Tarikh Baghdad (13/100) and affirmed his reliability. Ibn Hajar graded its chain hasan in Fath al-Bari (4/351).As for what was narrated from Jabir, who said, the Messenger of Allah ﷺ forbade the sale of food until the two measures had passed through it, the seller's measure and the buyer's measure, this contains weakness. Ibn Majah narrated it (2228), and Daraqutni (2819), and from him Bayhaqi (5/316), and Abd bin Humayd (1059), all of them from the hadith of Ibn Abu Layla, from Abu Zubayr, from Jabir, who mentioned it.Ibn Abu Layla is Muhammad bin Abdul-Rahman bin Abu Layla, who was graded daif on account of his memory, and Busiri faulted the hadith on this basis. Ibn Hajar attributed it in Fath al-Bari (4/351) to Daraqutni and passed over it in silence, perhaps because there is a corroborating witness for it, namely the hadith of Abu Hurairah.