Jabir said, "The Messenger of Allah, may Allah bless him and granthim peace, did not sleep until he had recited, 'Alif-Lam-Mim. The Sending-down'(32) and 'Blessed is the One in whose hand the kingdom is' (67).'" (ES)
English reference (ES): Book 50, Hadith 1207 (ES)
Arabic reference (ES): Book 1, Hadith 1207 (ES)