Quran 23:100 from Surah Al-Muminoon on Divine Marvels.
لَعَلِّيٓ أَعۡمَلُ صَٰلِحٗا فِيمَا تَرَكۡتُۚ كـَلَّآۚ إِنَّهَا كَلِمَةٌ هُوَ قَآئِلُهَاۖ وَمِن وَرَآئِهِم بَرۡزَخٌ إِلَىٰ يَوۡمِ يُبۡعَثُونَ
English translation: That I may do righteous (deeds) in what I left behind No Indeed, it (is) a word he speaks it and before them and before them (is) a barrier till (the) Day they are resurrected
Transliteration: la'alli a'malu salihan fima taraktu kalla innaha kalimatun huwa qailuha wamin waraihim barzakhun ila yawmi yub'athuna