﴿ بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ إِذَا ٱلشَّمْسُ كُوِّرَتْ ﴾

“WHEN THE SUN is shrouded in darkness,”

And from his narration on the authority of Ibn 'Abbas that he said regarding the interpretation of Allah's saying (When the sun is overthrown): '(When the sun is overthrown) it is also said that He says: when the sun is turned around as one turns a turban and is then thrown into the veil of light; it is also said this means: when the light of the sun vanishes.