Musnad Abu Ya'la al-Mawsili 117:217

Thabit said: "When I would come to Anas, he would be informed of my place, so I would enter upon him and take his hands and kiss them, and I would say: 'May my father be sacrificed for these two hands that touched the Messenger of Allah, may Allah bless him and grant him peace.' And I would kiss his eyes and say: 'May my father be sacrificed for these two eyes that saw the Messenger of Allah, may Allah bless him and grant him peace.'"