50:20

Qaaf 50:20

وَنُفِخَ فِى ٱلصُّورِ ۚ ذَٰلِكَ يَوْمُ ٱلْوَعِيدِ

Wa nufikha fis Soor; zaalika yawmul wa'eed

And then the Trumpet was blown. This is the day of the promised chastisement.