Surah Al-Waqi'ah 56:36

فَجَعَلْنَـٰهُنَّ أَبْكَارًا

And made them virgins,

Translation: Saheeh International

Tafsir

and made them virgins immaculate — every time their spouses enter them they find them virgins nor is there any pain of defloration —

Excerpt from Tafsir al-Jalalayn, commentary on 56:36, via Quran.com. The reader has the full commentary and 9 more tafsirs.