Surah Al-Anbya 21:72

وَوَهَبْنَا لَهُۥٓ إِسْحَـٰقَ وَيَعْقُوبَ نَافِلَةً ۖ وَكُلًّا جَعَلْنَا صَـٰلِحِينَ

And We gave him Isaac and Jacob in addition, and all [of them] We made righteous.

Translation: Saheeh International

Tafsir

And We gave him namely Abraham — for he had asked for a child as mentioned in sūrat al-Sāffāt Q. 37100 — Isaac and Jacob as a gift that is as something in addition to what was requested; or it means ‘a grandson’; and each of them that is himself and the two born of him We made righteous We made them prophets.

Excerpt from Tafsir al-Jalalayn, commentary on 21:72, via Quran.com. The reader has the full commentary and 9 more tafsirs.