Surah Al-Waqi'ah 56:95

إِنَّ هَـٰذَا لَهُوَ حَقُّ ٱلْيَقِينِ

Indeed, this is the true certainty,

Translation: Saheeh International

Tafsir

This indeed is the certain truth haqqu’l-yaqīn an example of an adjectivally qualified noun being annexed to its adjective.

Excerpt from Tafsir al-Jalalayn, commentary on 56:95, via Quran.com. The reader has the full commentary and 9 more tafsirs.