Chapter: It is recommended to lick one's fingers and wipe the bowl, and to eat a piece of food that is dropped after removing any dirt on it. It is disliked to wipe one's hand before licking it, because of the possibility that the blessing of the food may be in that remaining part. The Sunnah is to eat with three fingers
Ibn 'Abbas reported Allah's Messenger (may peace be upon him.) as saying: When any one of you eats food he should not wipe his hand until he has licked it himself or has given it to someone else to lick.
Ibn 'Abbas reported Allah's Messenger (ﷺ) 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 bin Malik reported on the authority of his father that he saw Allah's Messenger (ﷺ) licking his three fingers (after having finished the food). Ibn Hatim made no mention of "three". This hadith is also narrated through another chain of transmitters.
Ibn Ka'b bin Malik reported on the authority of his father that the Messenger of Allah (ﷺ) used to eat (food) with three fingers and he licked his hand before wiping it (with towel).
'Abdullah bin Ka'b reported that his father Ka'b narrated to him that Allah's Messenger (ﷺ) used to eat with three fingers and when he had finished (eating), he licked them.
Jabir reported Allah's Messenger (ﷺ) as saying: When any one of you drops a mouthful he should pick it up and remove any of the filth on it, and then eat it, and should not leave it for the Satan, and should not wipe his hand with towel until he has licked his fingers, for he does not know in what portion of the food the blessing lies.
Jabir reported: I heard Allah's Apostle (ﷺ) as saying: The Satan is present with any one of you in everything he does; he is present even when he eats food; so if any one of you drops a mouthful he should remove away anything filthy on it and eat it and not leave for the devil; and when he finishes (food) he should lick his fingers, for he does not know in what portion of his food the blessing lies.
This hadith is reported on the authority of A'mash with the same chain of transmitters but with a slight variation of words but no mention is made of the first part of the hadith, i. e. the Satan is present with any one of you.
Anas reported that when Allah's Messenger (ﷺ) ate food he licked his three fingers, and he said: When any one of you drops a mouthful he should remove anything filthy from it and then eat it, and should not leave it for the Satan. He also commanded us that we should wipe the dish saying: You do not know in what portion of your food the blessing lies.
Abu Hurairah (RA) reported Allah's Messenger (ﷺ) as saying: When any one of you eats food he should lick his fingers, for he does not know in what part of the food sticking to his fingers the blessing lies.