(2) باب فِي كَسْبِ الأَطِبَّاءِ
This tradition has also been transmitted by Abu Sa'id al-Khudri form the Prophet (ﷺ). (ID)
Reference (ID): Sunan Abi Dawud 3419 (ID)
In-book reference (ID): Book 24, Hadith 4 (ID)
English translation (ID): Book 23, Hadith 3412 (ID)