(107) باب مَا يُقَالُ عِنْدَ النَّوْمِ
Farwah b. Nawfal quoted his father as saying that the Prophet (ﷺ) said to Nawfal (his father):
Recite (the Surah) 'Say, O you disbelievers!' and then go to sleep at its end, for it is a declaration of freedom from polytheism. (RU)
Reference (RU): Sunan Abi Dawud 5055 (RU)
In-book reference (RU): Book 43, Hadith 283 (RU)
English translation (RU): Book 42, Hadith 5037 (RU)