Sahih Muslim

Sahih Muslim, Hadith 2714b

Book 48: The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness
Chapter 17: Chapter: Supplication When Going To Sleep

باب مَا يَقُولُ عِنْدَ النَّوْمِ وَأَخْذِ الْمَضْجَعِ

وَحَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا عَبْدَةُ، عَنْ عُبَيْدِ اللَّهِ بْنِ عُمَرَ، بِهَذَا الإِسْنَادِ وَقَالَ ‏"‏ ثُمَّ لْيَقُلْ بِاسْمِكَ رَبِّي وَضَعْتُ جَنْبِي فَإِنْ أَحْيَيْتَ نَفْسِي فَارْحَمْهَا ‏"‏ ‏.‏

This hadith has been narrated on the authority of Ubaidullah b. Umar with the same chain of transmitters and he said:

Then utter:" My Lord. with Thine name I place my side and if Thou keepest me alive have mercy upon myself"

Read it in place: 48. The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness