Its night He covers and He brings out its forenoon.meaning, He made its night dark and extremely black, and its day bright, luminous, shining and clear.Ibn Abbas said,"He did Aghtasha of its night means that He made it dark."Mujahid, `Ikrimah, Sa`id bin Jubayr and a large group have said this as well.In reference to Allah's statement, وَأَخْرَجَ ضُحَـهَا And He brings out its forenoon.meaning, He illuminated its day.Then Allah says,وَالاْاَرْضَ بَعْدَ ذَلِكَ دَحَاهَا