Saad was asked about exchanging white wheat for unhusked barley, and he disapproved of it. He said, "I heard the Prophet ﷺ being asked about exchanging fresh dates for dried dates. He asked, 'Do fresh dates shrink when they dry?'They replied, "Yes."He said, "Then no."
حدثنا عبد الرحمن بن مهدي عن مالك عن عبد الله بن يزيد
سئل سعد عن البيضاء بالسلت فكرهه وقال سمعت النبي ﷺ يسأل عن الرطب بالتمر فقال ينقص إذا يبس قالوا نعم قال فلا إذن
Its isnad is sahih. It is a longer version of 1515, and the discussion of it has already been given in detail. "Zayd Abu Ayyash" is the correct form, while in K and H it reads "Zayd bin Abu Ayyash," which is an error, for he is Zayd bin Ayyash, whose kunya is Abu Ayyash.Bayda means wheat, which is also called samra.Sult, with the sin pronounced with damma and the lam with sukun, is a type of barley that is white and has no husk.