لَعَلِّيٓ أَعۡمَلُ صَٰلِحٗا فِيمَا تَرَكۡتُۚ كـَلَّآۚ إِنَّهَا كَلِمَةٌ هُوَ قَآئِلُهَاۖ وَمِن وَرَآئِهِم بَرۡزَخٌ إِلَىٰ يَوۡمِ يُبۡعَثُونَ ١٠٠
That I might do righteousness in that which I left behind."1 No! It is only a word he is saying; and behind them is a barrier until the Day they are resurrected.
Translation: Saheeh International (English)
1 Or "in that which I neglected."
Each word's meaning and sound
Perhaps I will do good actions when I return to it. Never. The matter is not as you requested. It is only a statement he is uttering. If he were to return to the worldly life, he would not fulfil what he promised. These people who have died will remain in a barrier between the world and the afterlife until the Day of Resurrection and rising. Thus, they will not return from it to the world, to make up for what they lost and to correct what they spoiled.
Al-Mukhtasar in interpreting the Noble Quran