The Book of Drinks (Kitab Al-Ashriba)

Muslim :: Book 23 : Hadith 5050

Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: When any one of you cats food he should lick his fingers, for hen does not know in what part of the food sticking to his fingers the blessing lies. This hadith has been reported on the authority of Hammad with the same chain of transmitters, but with a slight variation of wording.