Allah—there is no deity except Him, the Ever-Living, the Sustainer of all. Neither drowsiness nor sleep overtakes Him. Everything in the heavens and on the earth belongs to Him. Who can intercede with Him except by His permission? He knows what lies before people and what lies beyond them, while they grasp nothing of His knowledge except what He wills. His Kursi extends over the heavens and the earth, and preserving them does not tire Him. He is the Most High, the Magnificent.
Source and grading
Hisn al-Muslim 100
·Quranic text (Al-Baqarah 2:255); hadith grading does not apply
سورة البقرة، الاية: 255، من قرأها إذا أوى إلى فراشه فإنه لن يزال عليه من اللَّه حافظ ولا يقربه شيطان حتى يصبح، البخاري مع الفتح، 4/ 487، برقم 2311.