Sura al-Anfāl 8:11

إِذْ يُغَشِّيكُمُ ٱلنُّعَاسَ أَمَنَةً مِّنْهُ وَيُنَزِّلُ عَلَيْكُم مِّنَ ٱلسَّمَآءِ مَآءً لِّيُطَهِّرَكُم بِهِۦ وَيُذْهِبَ عَنكُمْ رِجْزَ ٱلشَّيْطَٰنِ وَلِيَرْبِطَ عَلَىٰ قُلُوبِكُمْ وَيُثَبِّتَ بِهِ ٱلْأَقْدَامَ

idh yughashshīkumu l-nuʿāsa amanatan minhu wa-yunazzilu ʿalaykum mina l-samāʾi māʾan li-yuṭahhirakum bihi wa-yudhhiba ʿankum rijza l-shayṭāni wa-li-yarbiṭa ʿalā qulūbikum wa-yuthabbita bihi l-aqdāma

Remember He covered you with a sort of drowsiness, to give you calm as from Himself, and he caused rain to descend on you from heaven, to clean you therewith, to remove from you the stain of Satan, to strengthen your hearts, and to plant your feet firmly therewith.