‏الأشربة : Hadeeth No:5039 Ibn Ka'b b. Malik reported on the authority of his father that he saw Allaah's Messenger (sallAllaahu alayhi wa sallam) 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....

‏صفات المنافقين وأحكامهم‏ : Hadeeth No:6678 Jabir reported Allaah's Prophet (sallAllaahu alayhi wa sallam) came to the grave of 'Abdullah b. Ubayy, brought him out from that, placed him on his knee and put his saliva in his mouth and shrouded him in his own shirt and Allaah knows best....