It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever says, when lying down on his bed to sleep: 'Alhamdu lillahi alladhi kafani wa awani, alhamdu lillahi alladhi at'amani wa saqani, alhamdu lillahi alladhi manna 'alayya fa-afdal, Allahumma inni as'aluka bi'izzatika an tunajjiyani min al-nar' (All praise is for Allah who sufficed me and gave me shelter; all praise is for Allah who fed me and gave me drink; all praise is for Allah who bestowed favour upon me and gave generously; O Allah, I ask You by Your might to save me from the Fire), then he has praised Allah with all the praises of all of creation." The chain of this hadith is sahih (authentic), but the two Shaykhs (Bukhari and Muslim) did not record it.