Tafsir of Ash-Shu`ara' 26:74

He said: "Do they hear you when you call Or do they benefit you or do they cause harm!'' They said: "(Nay) but we found our fathers doing so.'' They knew that their idols could not do anything, but they had seen their fathers doing this, so they made haste to follow in their footsteps. So Ibrahim said to them:

قال أفرأيتم ما كنتم تعبدون