and recall when allah brought on you drowsiness giving you a feeling of peace and security from him and he sent down rain upon you from the sky that he might cleanse you through it and take away from you the pollution of satan and strengthen your hearts and steady your feet through it.
إذ يغشيكم النعاس أمنة منه وينزل عليكم من السماء ماء ليطهركم به ويذهب عنكم رجز الشيطان وليربط على قلوبكم ويثبت به الأقدام