وَلَو أَرادُوا الخُروجَ لَأَعَدّوا لَهُ عُدَّةً وَلـٰكِن كَرِهَ اللَّهُ انبِعاثَهُم فَثَبَّطَهُم وَقيلَ اقعُدوا مَعَ القاعِدينَ

Had they intended to mobilize, they would’ve made some preparation for it. However, God disapproved of their departure, so He held them back, and they were told, “Stay with those who remain behind.”