Upon the authority of Ibn Umar -Radhiyallahu ‘Anhumaa -who said that the Messenger – Sallallahu ‘Alaihi Was Salam Said:

“Purify these Bodies (of yours), May Allah grant you purity, for indeed there is not a servant that spends the night in a state of purification except that an angel spends the night with him in his garment. He does not turn at anytime during the night except that the angel says: “Oh Allah forgive your servant for indeed he spent the night in a state of purity!”

(Collected by Imaamut Tabaraani in ‘Mu’jam al Kabeer (13620) and declared ‘Hasan’ by shaikh Al Albaani in ‘Saheehul Jaami’ (3936))

Upon the authority of Ibn Umar – Radhiyallahu ‘Anhumaa who said that the messenger -Sallallahu ‘Alaihi Was Salam said:

“Whoever goes to sleep in a state of purification an angel spends the night in his garment. He doesnt wake from the night except that the angel says: “Oh Allah forgive your servant such and such for indeed he spent the night in a state of purity“

(Collected by Ibn Hibaan (1048) and Shaikh Al Albaani declared it ‘Hasanun Saheeh’

Upon the authority of Mu’aadh Ibn Jabal – Radhiyallahu ‘Anhu - who narrated upon the authority of the messenger – Sallallahu Alaihi Was Salam – Who said:

“There is no Muslim that goes to sleep with the rememberance of Allah and in a state of purity and is then startled and wakes during the night and asks Allah for the good of this world and the hereafter except that he give it to him“

(Collected by Abu Daawood 5042 and declared ‘Saheeh’ by Shaikh Al Albaani)