Musnad Abu Ya'la al-Mawsili 117:135

Sa'id narrated to us, Rashid narrated to us, Thabit narrated to us, from Anas, who said: The Messenger of Allah (may Allah bless him and grant him peace) passed by the young girls of Banu al-Najjar while they were beating the duff (tambourine) and saying: "We are young girls from Banu al-Najjar; how excellent is Muhammad as a neighbor." The Prophet of Allah said: "O Allah, bless them."