Prophet Hud - 11:87
"They said: "Shu´ayb, does your prayer require us to give up what our ancestors used to serve or to turn our trade as we wish? You are indeed mild-tempered and wise."
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.