Quran 2:170 — The Heifer (Al-Baqarah)

When they are told, "Follow what GOD has revealed herein," they say, "We follow only what we found our parents doing." What if their parents did not understand, and were not guided?

[2:169] He only commands you to commit evil and vice, and to say about GOD what you do not know.

[2:171] The example of such disbelievers is that of parrots who repeat what they hear of sounds and calls, without understanding. Deaf, dumb, and blind; they cannot understand.