leave company of those in the act of mocking Allah's law, 4:140, 6:68

And it has already been revealed to you in the Book (this Qur'an) that when you hear the Verses of Allah being denied and mocked at, then sit not with them, until they engage in a talk other than that; (but if you stayed with them) certainly in that case you would be like them. Surely, Allah will collect the hypocrites and disbelievers all together in Hell," (4:140)

And when you (Muhammad S) see those who engage in a false conversation about Our Verses (of the Qur'an) by mocking at them, stay away from them till they turn to another topic. And if Shaitan (Satan) causes you to forget, then after the remembrance sit not you in the company of those people who are the Zalimun (polytheists and wrong­doers, etc.)." (6:68)