Hazrat Ibn Abbas (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) said: When any one of you intends to have intercourse with his wife, he should recite this supplication: "In the name of Allah, O Allah! Protect us from Satan and protect the offspring You grant us from Satan." Then, if a child is destined for them from this act, Satan will never be able to harm him.