مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3476
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
Ibn Juraij said: I heard ‘Ata’ say: I heard Ibn ‘Abbas (رضي الله عنه) say: The Messenger of Allah (ﷺ) said: "When one of you eats food, let him not wipe his hand until he licks it or has it licked for him.
Musnad Ahmad 3499lts isnad is saheeh, al-Bukhari (5456) and Muslim (2031)]