Musannaf Ibn Abi Shaybah 12251 — The reward for a child whom a man

Muhammad bin Sirin said: A woman named Mawiyah, who used to come to us, narrated to me that she went to Ubaydullah bin Ma'mar, and with him was one of the Companions of the Prophet (peace and blessings be upon him). That Companion narrated that a woman brought her child to the Prophet (peace and blessings be upon him) and said: "O Messenger of Allah, pray that Allah Almighty keeps him alive, for three of my children have already died." He (peace and blessings be upon him) said to her: "Since you became a Muslim?" She said: "Yes." He (peace and blessings be upon him) said: "They are a fortified shield for you from the Fire." Except that he said to her three times: "Since you became a Muslim?" (and then:) "A fortified shield from the Fire." She said: Then Ubaydullah said to me: "O Mawiyah, come and listen to this hadith." He (Ibn Sirin) said: So she heard it, then she left Ubaydullah, came to us and narrated it to us.