Sahih Muslim 5294

Ibn 'Abbas reported Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) as saying: When any one of you eats food he should not wipe his hand until he has licked it or got it licked by (someone else). ..

Ibn Ka'b b. Malik reported on the authority of his father that he saw Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) licking his three fingers (after having finished the food). Ibn Hatim made no mention of three . This hadith is also narrated..

Ibn Ka'b b. Malik reported on the authority of his father that the Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) used to eat (food) with three fingers and he licked his hand before wiping it (with towel). ..

Abdullah b. Ka'b reported that his father Ka'b narrated to him that Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) used to eat with three fingers and when he had finished (eating), he licked them. ..

A hadith like this has been reported on the authority of Ka'b b. Malik through another chain of transmitters. ..

Jabir reported that Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) commanded the licking of fingers and the dish, saying: You do not know in what portion the blessing lies. ..