Musnad Abu Ya'la al-Mawsili 117:219

Muhammad ibn Marzuq narrated to us, Muhammad ibn Abd Allah al-Ansari narrated to me, my father narrated to us, from Jamilah, the mother of a child of Anas ibn Malik, who said: When Thabit would come to Anas, Anas would say, "O slave girl, bring me perfume so I may wipe my hands, for the son of the mother of Thabit, when he comes, is not satisfied until he kisses my hands."