Abu Zara' bin 'Amr /Harm أبو زرعة بن عمرو/هرم · The Book on Business

That the Messenger of Allah (ﷺ) said to the people of weights and measures: "Indeed you have been entrusted with two matters that nations preceding you in the past were destroyed for." We do not know this Hadith to be Marfu' except through the narration of Husain bin Qais, and Husain bin Qais was graded weak in Hadith. This has been reported as Maquf narration from Ibn 'Abbas with a Sahih chain of narration.

That the Prophet (ﷺ) said: "Gold for gold, kind for kind; silver for silver, kind for kind; dried-dates for dried-dates, kind for kind; wheat for wheat, kind for kind; salt for salt, kind for kind; and barley for barley, kind for kind. Whoever increases or seeks an increase, then he dealt with Riba. Sell gold for silver as you wish, hand to hand; and sell wheat for dried-dates as you wish, hand to hand; and sell barley for dried-dates as…