Surah 88. Al-Ghashiyah, Ayah 9

Notice the parallelism in contrast, between the fate of the Wicked and that of the Righteous. In the one case there was humiliation in their faces; in the other, there is joy; where there was labour and weariness in warding off the Fire, there is instead a healthy Striving, which is itself pleasurable, -a Striving which is a pleasant consequence of the spiritual Endeavour in the earthly life, which may have brought trouble or persecution from without, but which brought inward peace and satisfaction.