"Then suddenly they became two parties conflicting" (Qur'an 27:45). Qatada said: He says: the people were divided between one who believes and one who denies; this was their conflict.
﴿فَإِذَا هُمْ فَرِيقَانِ يَخْتَصِمُونَ﴾ قَالَ قَتَادَةُ: يَقُولُ: إِذَا الْقَوْمُ بَيْنَ مُصَدِّقٍ وَمُكَذِّبٍ؛ هَذِهِ كَانَتْ خُصُومَتُهُمْ
