Anas ibn Mālik (may Allah be pleased with him) reported: “Abū Ṭalḥah had a young son called Abū ʿUmayr, and the Prophet (ﷺ) ﷺ would jest with him. He said: One day he saw him looking sad and said: ‘O Abū ʿUmayr, what has happened to the little bird (al-nughayr)?’” Reference: Musnad Aḥmad 185