الاسراۤء — Al-Isra' Ayat 19

وَمَنْ اَرَادَ الْاٰخِرَةَ وَسَعٰى لَهَا سَعْيَهَا وَهُوَ مُؤْمِنٌ فَاُولٰۤىِٕكَ كَانَ سَعْيُهُمْ مَّشْكُوْرًا

Wa man arādal-ākhirata wa sa‘ā lahā sa‘yahā wa huwa mu'minun fa ulā'ika kāna sa‘yuhum masykūrā(n).

"But whoever desires the Hereafter and exerts the effort due to it while he is a believer - it is those whose effort is ever appreciated [by Allah]."