Musannaf Ibn Abi Shaybah

Hazrat Jabir (may Allah be pleased with him) narrates that once a man came to the service of the Prophet (peace be upon him) and said, "I have a maid who draws water for me. I practice coitus interruptus with her, but still she has given birth to a child." The Prophet (peace be upon him) said, "The soul whose coming into the world Allah has decided, it will surely come."