On the Recommendation to eat with three fingers and the recommendation to lick the fingers

Riyad as-Salihin (The Meadows of the Righteous)

by Imam Nawawi

109: Chapter: On the Recommendation to eat with three fingers and the recommendation to lick the fingers. It being disliked to wipe them before licking them. The recommendation to lick the plate and pick up the morsel which has fallen and eat it. Permission to wipe the hand on the arm, foot, etc. after licking it

748. Ibn 'Abbas reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "When one of you eats, he should not wipe his fingers until he has licked them or had them licked." [Agreed upon]

749. Ka'b ibn Malik said, "I saw the Messenger of Allah, may Allah bless him and grant him peace, eating with three fingers. When he finished, he licked them." [Muslim]

750. Jabir reported that the Messenger of Allah, may Allah bless him and grant him peace, commanded that both the fingers and the plate should be licked. He said, "You do not know in what part of the food the blessing lies." [Muslim]

751. Jabir reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "If one of you drops a morsel, he should pick it up and wipe off any dirt on it and eat it and not leave it for Shaytan. He should not wipe his hand with a cloth until he has licked his fingers. He does not know in what part of the food the blessing lies." [Muslim]

752. Jabir reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "Shaytan is present with each one of you in everything he does, even when he is eating. If you drop a morsel, you should pick it up and wipe off any dirt on it and then eat it and not leave it for Shaytan. When you finish, you should wipe your fingers. You do not know in what part of food the blessing lies." [Muslim]

753. Anas said, "When he ate, the Messenger of Allah, may Allah bless him and grant him peace, would lick his three fingers, and he said, 'If one of you drops a morsel, he should pick it up and wipe off any dirt on it and then eat it and not leave it for Shaytan.' He commanded us to wipe the plate and said, 'You do not know in what part of the food the blessing lies.'" [Muslim]

754. Sa'id ibn al-Harith said that he asked Jabir about doing wudu' on account of eating something that had been touched by fire (i.e. cooked). He said, 'No. In the time of the Prophet, may Allah bless him and grant him peace, we only had such food on rare occasions. When we had it, we did not have napkins, and would wipe our fingers on our palms, forearms and feet. Then we would pray without doing wudu'." [al-Bukhari]