and they swear by god with thee their solemn oaths that if there came unto them a sign they would surely believe therein. say thou signs are but with allah and what will make ye perceive that even if it came they will not believe?
وأقسموا بالله جهد أيمانهم لئن جاءتهم آية ليؤمنن بها قل إنما الآيات عند الله وما يشعركم أنها إذا جاءت لا يؤمنون