Surah Yusuf 12:111

لَقَدْ كَانَ فِى قَصَصِهِمْ عِبْرَةٌ لِّأُو۟لِى ٱلْأَلْبَـٰبِ ۗ مَا كَانَ حَدِيثًا يُفْتَرَىٰ وَلَـٰكِن تَصْدِيقَ ٱلَّذِى بَيْنَ يَدَيْهِ وَتَفْصِيلَ كُلِّ شَىْءٍ وَهُدًى وَرَحْمَةً لِّقَوْمٍ يُؤْمِنُونَ

There was certainly in their stories a lesson for those of understanding. Never was it [i.e., the Qur’ān] a narration invented, but a confirmation of what was before it and a detailed explanation of all things and guidance and mercy for a people who believe.

Translation: Saheeh International

Tafsir

Verily there is in their stories that is the messengers’ stories a lesson for people of pith possessors of intellect. It this Qur’ān is not a fabricated an invented discourse but it is a confirmation of what was revealed before it of scriptures and a detailing an elucidation of everything that one needs for the proper …

Excerpt from Tafsir al-Jalalayn, commentary on 12:111, via Quran.com. The reader has the full commentary and 9 more tafsirs.