And when one of them is given good tidings of that which he attributes to the Most Merciful in comparison, his face becomes dark, and he suppresses grief.
The Saheeh International Quran Translation
وَإِذَا بُشِّرَ أَحَدُهُم بِمَا ضَرَبَ لِلرَّحْمَٰنِ مَثَلًا ظَلَّ وَجْهُهُۥ مُسْوَدًّا وَهُوَ كَظِيمٌAnd when one of them is given good tidings of that which he attributes to the Most Merciful in comparison, his face becomes dark, and he suppresses grief.