Sunan Abi Dawud The Promised Deliverer (Kitab Al-Mahdi) Abdul 'Aziz bin Rafi' عبد العزيز بن رفيع Jarir bin 'Abdul Hameed al-Razi جرير بن عبد الحميد أبو عبد الله الضبي Ubaidullah bin al-Qbtyh عبيد الله بن القبطية الكوفي Umm Salamah Uthman bin Muhammad Da'if The tradition mentioned above has also been transmitted by Umm Salamah from the Prophet (ﷺ) through a different chain of narrators. The tradition of Mu’adh is more perfect. https://parallelquran.com/hadith/sunan-abi-dawud-4288/