Sahih Bukhari
Good Manners and Form (Al-Adab)
Volume: 008 / Book Number: 073 / Hadith Number: 150
Narrated Anas bin Malik:
The Prophet used to mix with us to the extent that he would say to a younger brother of mine, 'O father of 'Umar! What did the Nughair (a kind of bird) do?"