الزخرف — Az-Zukhruf Ayat 17
وَاِذَا بُشِّرَ اَحَدُهُمْ بِمَا ضَرَبَ لِلرَّحْمٰنِ مَثَلًا ظَلَّ وَجْهُهٗ مُسْوَدًّا وَّهُوَ كَظِيْمٌ
Wa iżā busysyira aḥaduhum bimā ḍaraba lir-raḥmāni maṡalan ẓalla wajhuhū muswaddaw wa huwa kaẓīm(un).
"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."