Wa izaa maaa unzilat Sooratun nazara ba'duhum ilaa ba'din hal yaraakum min ahadin summman sarafoo; sarafal laahu quloobahum bi annahum qawmul laa yafqahoon
Whenever there cometh down a Sura, they look at each other, (saying), "Doth anyone see you?" Then they turn aside: Allah hath turned their hearts (from the light); for they are a people that understand not.