Sunan Abi Dawud Fasting (Kitab Al-Siyam) Ahmad bin Hanbal أحمد بن حنبل Amr bin Aws bin Abi Aws عمرو بن أوس بن أبي أوس Muhammad bin 'Isa bin Hyan محمد بن عيسى بن حيان Sufyan bin 'Uyaynah سفيان بن عيينة Umar ibn al-Khattab Da'if AbdurRahman reported on the authority of his uncle that the people of the tribe Aslam came to the Prophet (ﷺ). He said (to them): Did you fast on this day? They replied: No. He said: Complete the rest of your day, and make atonement for it. https://parallelquran.com/hadith/sunan-abi-dawud-2447/ Sunan Abi Dawud Tribute, Spoils, and Rulership (Kitab Al-Kharaj, Wal-Fai' Wal-Imarah) Amr bin Aws bin Abi Aws عمرو بن أوس بن أبي أوس Amr bin Dinar عمرو بن دينار الأثرم الجمحي Masdad bin Masrhad مسدد بن مسرهد بن مسربل Sufyan bin Sa‘id Ath-Thawri سفيان الثوري Hasan Ibn ‘Abbas said “When the Prophet of the Persians dies, Iblis (satan) led them to Mazdaism.” https://parallelquran.com/hadith/sunan-abi-dawud-3042/