ثُمَّ نُكِسُوۡا عَلٰى رُءُوۡسِہِمۡۚ لَـقَدۡ عَلِمۡتَ مَا هٰٓؤُلَآءِ يَنۡطِقُوۡنَ
Then they were turned upside down upon their heads (i.e. their thinking reverted and they said: ‘Ibrahim [Abraham]), surely you yourself know that they do not speak.’