Luqman - 31:21
"When it is said to them, "Follow what Allah has sent down,"they say, "Nay, we follow the way which we found our fathers on."Even though Satan calls them to the torment of the blazing Fire?"
The end of blindly following ancestors:
Those Who Set The Ranks/37:67
On top of that there is for them a hellish cocktail.
Those Who Set The Ranks/37:68
Then their return is to Hell.
Those Who Set The Ranks/37:69
They found their forefathers astray.
Those Who Set The Ranks/37:70
And they were blindly following in their footsteps.
Those Who Set The Ranks/37:71
Many before them had gone astray in the same way.