‏الأشربة : Hadeeth No:5041 'Abdullah b. Ka'b reported that his father Ka'b narrated to him that Allaah's Messenger (sallAllaahu alayhi wa sallam) used to eat with three fingers and when he had finished (eating), he licked them....

‏البيوع : Hadeeth No:3851 This hadith has been narrated on the authority of Zuhri with the same chain of transmitters....