Al-Mu'minun 23:100

لَعَلِّيٓ أَعۡمَلُ صَٰلِحٗا فِيمَا تَرَكۡتُۚ كَلَّآۚ إِنَّهَا كَلِمَةٌ هُوَ قَآئِلُهَاۖ وَمِن وَرَآئِهِم بَرۡزَخٌ إِلَىٰ يَوۡمِ يُبۡعَثُونَ 100

That I might do righteousness in that which I left behind." No! It is only a word he is saying; and behind them is a barrier until the Day they are resurrected