Sa'id bin Abi 'Aruba سعيد بن أبي عروبة · The Book of Financial Transactions

"The Messenger of Allah said: 'There will come a time when a man will not care where his wealth comes from, whether (the source is) Halal or Haram."

the Messenger of Allah appointed a man in charge of kharibar and he brought some Janib dates. The messenger of Allah said; "Are all the dates if khaibar like this?" He said: "No (by Allah, O Messenger of Allah) we take a Sa of these for two for three Sas (of other types of dates)." The messenger of Allah said: "do not do that Sell the mixed dates for Dirhams then buy the Janib dates with the Dirhams" ,"

"Ata' told me that from 'Abdullah bin 'Ismah Al-Jushami from Hakim bin Hizam from the prophet. "

"He put his armor in pledge for that with a Jew in Al-Madinah, and he took some barley from him for his family.