وأقسموا بالله جهد أيمانهم لئن أمرتهم ليخرجن قل لا تقسموا طاعة معروفة إن الله خبير بما تعملون
And they swear by Allah strong their oaths that if you ordered them, surely they (would) go forth. Say, "(Do) not swear. Obedience (is) known. Indeed, Allah (is) All-Aware of what you do."