Sayyiduna Anas (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) had the best character of all people. I had a brother called Abu Umayr, who had just been weaned. Whenever the Prophet (peace and blessings be upon him) came to him, he would ask: "O Abu Umayr, what happened to your little bird?" The narrator said: He used to play with that bird.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19333