The word(s) "pillars" appears 3 time(s) in 3 verse(s) in Quran in Saheeh International translation.

(1) It is Allah who erected the heavens without pillars that you [can] see; then He established Himself above the Throne and made subject the sun and the moon, each running [its course] for a specified term. He arranges [each] matter; He details the signs that you may, of the meeting with your Lord, be certain.

(2) He created the heavens without pillars that you see and has cast into the earth firmly set mountains, lest it should shift with you, and dispersed therein from every creature. And We sent down rain from the sky and made grow therein [plants] of every noble kind.

(3) [With] Iram - who had lofty pillars,