وَلِيَعْلَمَ الَّذِيْنَ نَافَقُوْا ۖوَقِيْلَ لَهُمْ تَعَالَوْا قَاتِلُوْا فِيْ سَبِيْلِ اللّٰهِ اَوِ ادْفَعُوْا ۗ قَالُوْا لَوْ نَعْلَمُ قِتَالًا لَّاتَّبَعْنٰكُمْ ۗ هُمْ لِلْكُفْرِ يَوْمَىِٕذٍ اَقْرَبُ مِنْهُمْ لِلْاِيْمَانِ ۚ يَقُوْلُوْنَ بِاَفْوَاهِهِمْ مَّا لَيْسَ فِيْ قُلُوْبِهِمْ ۗ وَاللّٰهُ اَعْلَمُ بِمَا يَكْتُمُوْنَۚ ( آل عمران: ١٦٧ )
Wa liya'lamal lazeena naafaqoo; wa qeela lahum ta'aalaw qaatiloo fee sabeelil laahi awid fa'oo qaaloo law na'lamu qitaalallat taba'naakum; hum lilkufri yawma'izin aqrabu minhum lil eemaan; yaqooloona bi afwaahihim maa laisa fee quloobihim; wallaahu a'lamu bimaa yaktumoon (ʾĀl ʿImrān 3:167)
Sahih International:
And that He might make evident those who are hypocrites. For it was said to them, "Come, fight in the way of Allah 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 Allah is most knowing of what they conceal . (Ali 'Imran [3] : 167)
1 Mufti Taqi Usmani
and in order to know those who are hypocrites. It was said to them, “Come on, fight in the way of Allah, or defend.” They said, “Had we known it to be a fight we would have certainly followed you.” That day, they were nearer to disbelief than they were to Belief. They utter from their mouths what is not in their hearts. Allah knows well what they conceal.