and those who disbelieved say why has a sign not been sent down to him from his lord? say indeed allah leaves astray whom he wills and guides to himself whoever turns back those who have believed and whose hearts are assured by the remembrance of allah. unquestionably by the remembrance of allah hearts are assured.
ويقول الذين كفروا لولا أنزل عليه آية من ربه قل إن الله يضل من يشاء ويهدي إليه من أناب الذين آمنوا وتطمئن قلوبهم بذكر الله ألا بذكر الله تطمئن القلوب