From Abu Hurairah that the Prophet -sallAllaahu alayhi wa sallam – said:
” من بات طاهرا بات في شعاره ملك لا
يستيقظ ساعة من الليل إلا قال الملك:
اللهم اغفر لعبدك فلانا، فإنه بات طاهرا “.
‘Whoever sleeps while in a state of purification then an Angel sleeps in his garment, he does not wake up at any time during the night except that the Angel says: O Allaah forgive Your slave such and such since he went to sleep upon purification.’
[Collected by Abdullaah ibn al-Mubarak in ‘Hadeethihi’ & ‘Zuhd’, and Albaani declared it to have a Hasan Isnaad in Silsilah Saheehah no. 2539]
Translated by Abbas Abu Yahya
Miraath al-Anbiyya