is such a person who is obedient and prostrates himself in the watches of the night stands is fearful of the hereafter and looks forward to the mercy of his lord? ask them are those who know equal to those who do not know? only those endowed with understanding take heed.
أمن هو قانت آناء الليل ساجدا وقائما يحذر الآخرة ويرجو رحمة ربه قل هل يستوي الذين يعلمون والذين لا يعلمون إنما يتذكر أولو الألباب