Musannaf Ibn Abi Shaybah 27653 — Responding to one who sneezes

Abu Burdah said: I came to Sayyiduna Abu Musa (may Allah be pleased with him) while he was in the house of the daughter of al-Fadl. I sneezed, and he did not say 'Yarhamuk Allah' (May Allah have mercy on you) to me; and the daughter of al-Fadl sneezed, and he said 'Yarhamuk Allah' to her. I went back to my mother and told her about this. When he came to her, she said: "My son sneezed in your presence and you did not say 'Yarhamuk Allah' to him, and this girl sneezed and you said 'Yarhamuk Allah' to her." He said: "Your son sneezed and did not say 'Alhamdulillah' (All praise is for Allah), so I did not say 'Yarhamuk Allah' to him; and this girl sneezed and said 'Alhamdulillah', so I answered her with 'Yarhamuk Allah'. And I heard the Messenger of Allah (peace and blessings be upon him) say: 'When one of you sneezes and says Alhamdulillah, then pray for him by saying Yarhamuk Allah; and when he does not say Alhamdulillah, then do not say Yarhamuk Allah to him.'"