Chapter 97: Oneness, Uniqueness of Allah (Tawheed)
Narrated Ibn 'Abbas: Allah' s Messenger (ﷺ) said, "If anyone of you, when intending to have a sexual relation (sleep) with his wife,
says: Bismillah, Allahumma jannibna ash Shaitan, wa Jannib ash-Shaitana ma razaqtana, Satan would
never harm that child, should it be ordained that they will have one. (Because of that sleep).
Sahih al-Bukhari 7396