The Holy Quran 23:100 — Surah Al-Mu'minun

Arabic text

لَعَلِّىٓ أَعْمَلُ صَـٰلِحًا فِيمَا تَرَكْتُ ۚ كَلَّآ ۚ إِنَّهَا كَلِمَةٌ هُوَ قَآئِلُهَا ۖ وَمِن وَرَآئِهِم بَرْزَخٌ إِلَىٰ يَوْمِ يُبْعَثُونَ

Translation

"...so that I may perform good deeds in that (worldly life) which I have left behind." Never (because he will suffer in both)! It (their promise to lead better lives) is merely a statement that they speak (an empty statement). (They will be unable to return to the world because) Behind them is "Barzakh" (a barrier preventing their return, which will remain in place) until the day that they are resurrected (until the Day of Qiyaamah).

Tafsir (excerpt) — Tafsir Usmani

The regret of the disbelievers at the throes of death: that is, keep repelling the evils of these disbelievers in a good way, and leave to Us the things they fabricate, until the time of death comes to some of them and, seeing the beginnings of punishment in the throes of death, they begin to regret. At that time they will wish: “O Lord!

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