ذَٰلِكَ بِأَنَّهُمۡ قَالُواْ لَن تَمَسَّنَا ٱلنَّارُ إِلَّآ أَيَّامٗا مَّعۡدُودَٰتٖۖ وَغَرَّهُمۡ فِي دِينِهِم مَّا كَانُواْ يَفۡتَرُونَ
That is because they said: "The Fire will not touch us except for a few number of days," and they were arrogant by what they invented in their system
Author: The Monotheist Group Edition