Al-Mukhtasar
ثُمَّ ٱرْجِعِ ٱلْبَصَرَ كَرَّتَيْنِ يَنقَلِبْ إِلَيْكَ ٱلْبَصَرُ خَاسِئًا وَهُوَ حَسِيرٌ ﴿٤﴾
Then, look again time after time; your eyesight will return humiliated without having found any defect or fault in the creation of the heaven; exhausted without being able to see.