Sahih Bukhari
Hadith #6324
Narrated Hudhaifa:Whenever the Prophet (ﷺ) intended to go to bed, he would recite: ""Bismika Allahumma amutu wa ahya (With Your name, O Allah, I die and I live)."" And when he woke up from his sleep, he would say: ""Al-hamdu lil-lahil-ladhi ahyana ba'da ma amatana; wa ilaihi an-nushur (All the Praises are for Allah Who has made us alive after He made us die (sleep) and unto Him is the Resurrection