إِنَّ عِدَّةَ الشُّهورِ عِندَ اللَّهِ اثنا عَشَرَ شَهرًا في كِتابِ اللَّهِ يَومَ خَلَقَ السَّماواتِ وَالأَرضَ مِنها أَربَعَةٌ حُرُمٌ ۚ ذٰلِكَ الدّينُ القَيِّمُ ۚ فَلا تَظلِموا فيهِنَّ أَنفُسَكُم ۚ وَقاتِلُوا المُشرِكينَ كافَّةً كَما يُقاتِلونَكُم كافَّةً ۚ وَاعلَموا أَنَّ اللَّهَ مَعَ المُتَّقينَ

Since the day God created the heavens and the earth, God ordained twelve months in a year, four of which are sanctified. This is the correct order, so make no mistake about them. Fight the polytheists collectively, as they fight you collectively, and know that God is with the righteous.