And indeed, he is to that a witness.-Quran Verses

100-Surah Al-’adiyat ( Those That Run ) 7

And indeed, he is to that a witness.

﴿7﴾وَإِنَّهُ عَلَىٰ ذَٰلِكَ لَشَهِيدٌ

Quran's Tafhim ( explanation)

*5) That is his own conscience and his own deeds are a witness to it; then there are many disbelievers also who by their own tongue express their ingratitude openly 'for they do not even believe that God exists to say nothing of acknowledging His blessings for which they may have to render gratitude to Him.