Surah Al-Hijr 15:12

كَذَٰلِكَ نَسْلُكُهُۥ فِى قُلُوبِ ٱلْمُجْرِمِينَ

Thus do We insert it [i.e., denial] into the hearts of the criminals.

Translation: Saheeh International

Tafsir

Thus We cause it to find its way in other words in the same way that We have caused denial to enter the hearts of those individuals We cause it to enter into the hearts of the sinners that is the disbelievers of Mecca.

Excerpt from Tafsir al-Jalalayn, commentary on 15:12, via Quran.com. The reader has the full commentary and 9 more tafsirs.