Verse 67

لِّكُلِّ أُمَّةٍ جَعَلْنَا مَنسَكًا هُمْ نَاسِكُوهُ فَلَا يُنَـٰزِعُنَّكَ فِى ٱلْأَمْرِ وَٱدْعُ إِلَىٰ رَبِّكَ إِنَّكَ لَعَلَىٰ هُدًى مُّسْتَقِيمٍ

And for every community We decreed rituals, which they uphold, therefore do not argue with them and invite to your Lord. Indeed you are rightfully guided.