Sahih Bukhari Volume 9, Book 93, Number 491:


Narrated Juhaifa:

When the Prophet went to bed, he used to say, "Allhumma bismika ahya wa amut." And when he got Up in the mornings he used to say, "Alhamdu lillahi al-ladhi ahyana ba'da ma amatana wa ilaihi-n-nushur."



Volume 9, Book 93, Number 492:


Narrated Abu Dharr:

When the Prophet went to bed at night, he used to say: "Bismika namutu wa nahya." And when he got up in the morning, he used to say, "Alhamdu lillahi al-ladhi ahyana ba'da ma amatana, wa ilaihi-n-nushur."



Volume 9, Book 93, Number 493:


Narrated Ibn 'Abbas:

Allah's Apostle said, "If anyone of you, when intending to have a sexual relation (sleep) with his wife, says: Bismillah, Allahumma jannibna ashShaitan, 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)."