Imam Ahmad recorded that `Irbad bin Sariyah said that the Messenger of Allah used to recite Al-Musabbihat before he went to sleep, saying,
(In them there is an Ayah that is better than a thousand Ayat.) Abu Dawud, At-Tirmidhi and An-Nasa'i collected this Hadith; At-Tirmidhi said, "Hasan Gharib.'' The Ayah referred to in this Hadith is -- and Allah knows best --
(He is Al-Awwal and Al-Akhir, Az-Zahir and Al-Batin. And He is the All-Knower of everything.)(57:3) Allah willing, we will again mention this subject. Upon Allah we trust and our total reliance and dependence are on Him, and sufficient He is to us as Supporter and Helper.
In the Name of Allah, the Most Gracious, the Most Merciful.