Hadith #3049 (Sunan Abi Dawud)
Book: Tribute, Spoils, and Rulership (Kitab Al-Kharaj, Wal-Fai' Wal-Imarah)
Narrator(s): Arbad bin Sariyya al-Salmi, Artah bin al-Mundhir bin al-Aswad أرطاة بن المنذر بن الأسود, Hkym bin 'Umayr bin al-Ahws حكيم بن عمير بن الأحوص, Muhammad bin 'Isa bin Hyan محمد بن عيسى بن حيان
Grade: Da'if

Harb ibn Ubaydullah ibn Umayr ath-Thaqafi told on the authority of his grandfather, a man of Banu Taghlib: I came to the Prophet (ﷺ), embraced Islam, and he taught me Islam. He also taught me how I should take sadaqah from my people who had become Muslim. I then returned to him and said: Messenger of Allah, I remembered whatever you taught me except the sadaqah. Should I levy tithe on them? He replied: No, tithes are to be levied on Christians and Jews.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-3049/