Every Muslim should be cautious against being deluded by the majority and reasoning by saying, “Everyone does this and that, and everyone practices this and that (act), so I am with them”. This is a great calamity which destroyed many people of old.
So, O intelligent one, upon you is to look to your own self and hold yourself accountable.
Upon you is to hold fast to the truth even if the people abandon it. Upon you is to be cautious against that which Allāh has prohibited even if the people engage in it; for indeed, the truth is more deserving of adherence. Allāh mentions: