is one who is obedient to allah prostrating himself or standing during the hours of the night fearing the hereafter and hoping for the mercy of his lord ? say are those who know equal to those who know not? it is only men of understanding who will remember .
أمن هو قانت آناء الليل ساجدا وقائما يحذر الآخرة ويرجو رحمة ربه قل هل يستوي الذين يعلمون والذين لا يعلمون إنما يتذكر أولو الألباب