It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) used to come to us, and I had a younger brother whose nickname was Abu Umair. He had a pet nightingale with which he used to play, but it died. The Prophet (peace and blessings of Allah be upon him) came and saw him upset. He (peace and blessings of Allah be upon him) asked, "What is the matter with him?" It was said to him, "His nightingale has died." The Prophet (peace and blessings of Allah be upon him) said, "O Abu Umair! What happened to your nightingale? It has left you."