Surah 43. Az-Zukhruf, Ayah 26

Namely, the inadmissibility of blindly accepting the religious views s anctioned by mere ancestral tradition and thus prevalent in one's environment, and regarding them as valid even though they may conflict with one's reason and/or divine revelation. Abraham's search after truth is mentioned several times in the Qur'an, and particularly in 6:74 ff. and 21:51 ff.

The plea of ancestral ways is refuted by the example of Abraham, in two ways: (1) he gave up the ancestral cults followed by his father and people, and followed the true Way, even at some sacrifice to himself; and (2) he was an ancestor of the Arabs, and if the Arabs stood on ancestral ways, why should they not follow their good ancestor Abraham, rather than their bad ancestors who fell into evil? See n. 4627 above. The incident in Abraham's story referred to here will be found in xxi. 51-70.