Mishkat al-Masabih 2056

Al-Irbad ibn Sariya said the Prophet (sallallahu alayhi wa sallam) used to recite al-Musabbihat* before going to sleep, and say they contained a verse which is better than a thousand verses. *These are said to be suras 57, 59, 61, 62, 64, 87 which begin with the perfect, imperfect, or imperative of the verb sabbaha (‘to glorify’). Tirmidhi and Abu Dawud transmitted it, and Darimi transmitted it in mursal form on the authority of Khalid ibn Madan. Tirmidhi said this is a hasan gharib tradition.