The Refutation against Whoever denies Life after Death
Allah rebukes those who deny the Resurrection and the Final Gathering.
قُتِلَ الإِنسَـنُ مَآ أَكْفَرَهُ
(Qutila mankind!) Ad-Dahhak reported from Ibn `Abbas that he said,
قُتِلَ الإِنسَـنُ
(Qutila mankind!) "May man be cursed." Abu Malik also made a similar statement. He said, "This refers to the rejecting type of man, due to his abundant denial without any supporting argument. Rather he denies simply because he thinks it is farfetched and because he lacks knowledge of it." Ibn Jurayj said,
مَآ أَكْفَرَهُ
(How ungrateful he is!) "This means none is worse in disbelief than he is." Qatadah said,
ثُمَّ السَّبِيلَ يَسَّرَهُ (then He made the way easy for him...80:20) Allah through His consummate wisdom creates man in his mother's womb, creation after creation, within three layers of darkness [ i.e. the belly, the womb and the amniotic membrane ]. It is kept in a safe place in the belly. The mother in whose belly all this is happening is totally unaware of any of the details of this process. Thereafter, when the baby becomes perfect with all its limbs and organs, Allah made it possible that a body weighing 3 to 4 kg comes out through an extremely narrow passage, and the mother does not suffer unduly. So blessed be He Who is the best Creator!
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 20–23
The Prophet Muhammad was once preaching to the chiefs of the Quraysh in Makkah, when a blind man, ‘Abdullah ibn Umm al-Maktum, arrived at the gathering and said, ‘O, Prophet of God ! Please teach me something of what God has taught you.’ The arrival of a blind person at this juncture displeased the Prophet. These verses were revealed on that occasion. In these verses the apparent addressee is the Prophet Muhammad, but actually it has been clarified with reference to this incident that, in the eyes of God, those prominent people who have turned away from religion have no value. Before God, the valued person is the one who is imbued with the God-fearing spirit, though apparently he may be a ‘blind’ person.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.