Sunan Abi Dawud Commercial Transactions (Kitab Al-Buyu) Abdullah bin 'Amr bin al-'Aas Abu Sufyan ibn Harb Hafs bin 'Umar bin al-Harith حفص بن عمر بن الحارث Hammad bin Salama حماد بن سلمة Ibn Ishaq محمد بن إسحاق بن يسار‎ Yazid bin Abi Habib يزيد بن أبي حبيب Sahih The Prophet (ﷺ) forbade selling animals for animals when payment was to be made at a later date. https://parallelquran.com/hadith/sunan-abi-dawud-3356/