The Quran

وَيَقولُ الَّذينَ آمَنوا لَولا نُزِّلَت سورَةٌ ۖ فَإِذا أُنزِلَت سورَةٌ مُحكَمَةٌ وَذُكِرَ فيهَا القِتالُ ۙ رَأَيتَ الَّذينَ في قُلوبِهِم مَرَضٌ يَنظُرونَ إِلَيكَ نَظَرَ المَغشِيِّ عَلَيهِ مِنَ المَوتِ ۖ فَأَولىٰ لَهُم

(Saheeh International)

Those who believe say, "Why has a sūrah¹ not been sent down?" But when a precise sūrah is revealed and fighting is mentioned therein, you see those in whose hearts is disease [i.e., hypocrisy] looking at you with a look of one overcome by death. And more appropriate for them² [would have been]

i.e., one in which permission is given the believers to fight their enemies.
The words "awlā lahum" can also be interpreted as "woe to them!" In that case, the following verse would begin, "[Better for them would have been] obedience and good words."