Surah 75. Al-Qiyamah, Ayah 33

Lit., "to his people": i.e., to the arrogant belief, rooted in the materialism of his social environments that man is "self-sufficient" and, therefore, not in need of any divine guidance (cf. 96:6 ).

Conceit or arrogance is the root-cause of most Evil. By that cause fell Iblis: see ii. 34.