Sura: AL‑‘ALAQ 

Aya : 7

أَن رَّءَاهُ ٱسۡتَغۡنَىٰٓ

Because he sees himself self-sufficient.



Sura: AL‑‘AADIYĀT 

Aya : 6

إِنَّ ٱلۡإِنسَٰنَ لِرَبِّهِۦ لَكَنُودٞ

Indeed mankind, to his Lord, is ungrateful.



Sura: AL‑‘AADIYĀT 

Aya : 7

وَإِنَّهُۥ عَلَىٰ ذَٰلِكَ لَشَهِيدٞ

And indeed, he is to that a witness.[1]


1- Through his speech and his actions.