The Holy Quran 102:5 — Surah At-Takathur
Arabic text
كَلَّا لَوْ تَعْلَمُونَ عِلْمَ ٱلْيَقِينِ
Translation
Never! If you had certain (definite) knowledge (of reality, you would not have preoccupied yourself with this rivalry to accumulate wealth).
Tafsir (excerpt) — Tafsir Usmani
That is, your idea is not at all correct. Had you known with certainty, through sound proofs, that all the goods of this world are worthless compared with the Hereafter, you would never have remained in this heedlessness.
Preview. The full text opens with JavaScript enabled.