Volume 8, Book 75, Number 326:
Narrated Hudhaifa:
When the Prophet went to bed at night, he would put his hand under his cheek and then say, “Al –
lahumma bismika amutu wa ahya,” and when he got up, he would say, “Al-Hamdu lil-lahi al-ladhi
ahyana ba’da ma amatana, wa ilaihi an-nushur.”