مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1923
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn ‘Abbas that the Prophet (ﷺ) said: "When one of you eats, let him not wipe his hand until he has licked it or it is licked for him.”
Musnad Ahmad 1924Sahih (Darussalam) [ al-Bukhari (5456) and Muslim (2031)]