Waki' bin al-Jarrah وكيع بن الجراح · Commercial Transactions (Kitab Al-Buyu)

I heard my father say: A man said to Shu'bah: Sufyan opposed you (i.e. narrated a tradition which differs from your version). He replied: You racked my mind. I have been told that Yahya b. Ma'in said: If anyone opposes Sufyan, the version of Sufyan will be acceptable.

The Messenger of Allah (ﷺ) would not say funeral prayer over a person who died while the debt was due from him. A dead Muslim was brought to him and he asked: Is there any debt due from him? They (the people) said: Yes, two dirhams. He said: Pray yourselves over your companion. Then AbuQatadah al-Ansari said: I shall pay them, Messenger of Allah. The Messenger of Allah (ﷺ) then prayed over him. When Allah granted conquests to the Messenger…

The Messenger of Allah (ﷺ) said: Gold is to be paid for with gold, raw and coined, silver with silver, raw and coined (in equal weight), wheat with wheat in equal measure, barley with barley in equal measure, dates with dates in equal measure, salt by salt with equal measure; if anyone gives more or asks more, he has dealt in usury. But there is no harm in selling gold for silver and silver (for gold), in unequal weight, payment…

Ya'la b. Hakim wrote to me: I heard Sulaiman b. Yasar narrating the tradition to the same effect as narrated by 'Ubaid Allah and through the same chain.

Ibn Rawahah assessed them (the amount of dates) at forty thousand wasqs, and when Ibn Rawahah gave them option, the Jews took the fruits in their possession and twenty thousand wasqs of dates were due from them.