Allahu la ilaha illahuwa alhayyu alqayyoomu la ta/khuthuhusinatun wala nawmun lahu ma fee assamawatiwama fee al-ardi man tha allatheeyashfaAAu AAindahu illa bi-ithnihi yaAAlamu mabayna aydeehim wama khalfahum wala yuheetoonabishay-in min AAilmihi illa bima shaawasiAAa kursiyyuhu assamawati wal-ardawala yaooduhu hifthuhumawahuwa alAAaliyyu alAAatheem
Allāh - there is no deity except Him, the Ever-Living, the Self-Sustaining. Neither drowsiness overtakes Him nor sleep. To Him belongs whatever is in the heavens and whatever is on the earth. Who is it that can intercede with Him except by His permission? He knows what is [presently] before them and what will be after them, and they encompass not a thing of His knowledge except for what He wills. His Kursī extends over the heavens and the earth, and their preservation tires Him not. And He is the Most High, the Most Great.
Ayat al-Kursi, the verse of the Throne. Say it at night and step into its protection.