Surah Al-Baqarah 2:179

وَلَكُمْ فِى ٱلْقِصَاصِ حَيَوٰةٌ يَـٰٓأُو۟لِى ٱلْأَلْبَـٰبِ لَعَلَّكُمْ تَتَّقُونَ

And there is for you in legal retribution [saving of] life, O you [people] of understanding, that you may become righteous.

Translation: Saheeh International

Tafsir

In retaliation there is life for you that is great longevity O people of pith possessors of intellect because if the would-be killer knew that he would be killed in retaliation he would refrain from such action and would have thereby given life to himself and to the one whom he had intended to kill; …

Excerpt from Tafsir al-Jalalayn, commentary on 2:179, via Quran.com. The reader has the full commentary and 9 more tafsirs.