3 : 167
وَلِيَعۡلَمَ ٱلَّذِينَ نَافَقُواْۚ وَقِيلَ لَهُمۡ تَعَالَوۡاْ قَٰتِلُواْ فِي سَبِيلِ ٱللَّهِ أَوِ ٱدۡفَعُواْۖ قَالُواْ لَوۡ نَعۡلَمُ قِتَالٗا لَّٱتَّبَعۡنَٰكُمۡۗ هُمۡ لِلۡكُفۡرِ يَوۡمَئِذٍ أَقۡرَبُ مِنۡهُمۡ لِلۡإِيمَٰنِۚ يَقُولُونَ بِأَفۡوَٰهِهِم مَّا لَيۡسَ فِي قُلُوبِهِمۡۚ وَٱللَّهُ أَعۡلَمُ بِمَا يَكۡتُمُونَ
and in order to make known those who are hypocrites. They were told, “Come forward, fight in the way of Allah or at least defend.” They said, “If we had known there was fighting, we would have certainly followed you.” That day they were nearer to disbelief than to faith, saying with their mouths what was not in their hearts, but Allah is All-Knowing of what they conceal.