Ali 'Imran 3:167 وليعلم الذين نافقوا وقيل لهم تعالوا قاتلوا في سبيل الله او ادفعوا قالوا لو نعلم قتالا لاتبعناكم هم للكفر يوميذ اقرب منهم للايمان يقولون بافواههم ما ليس في قلوبهم والله اعلم بما يكتمون ١٦٧

And that He might make evident those who are hypocrites. For it was said to them, "Come, fight in the way of Allāh or [at least] defend." They said, "If we had known [there would be] battle, we would have followed you." They were nearer to disbelief that day than to faith, saying with their mouths what was not in their hearts. And Allāh is most knowing of what they conceal -