Surah Fussilat 41:20

حَتَّىٰٓ إِذَا مَا جَآءُوهَا شَهِدَ عَلَيْهِمْ سَمْعُهُمْ وَأَبْصَـٰرُهُمْ وَجُلُودُهُم بِمَا كَانُوا۟ يَعْمَلُونَ

Until, when they reach it, their hearing and their eyes and their skins will testify against them of what they used to do.

Translation: Saheeh International

Tafsir

until when they reach it idhā mā the mā is extra their hearing and their eyes and their skins will bear witness against them concerning what they used to do.

Excerpt from Tafsir al-Jalalayn, commentary on 41:20, via Quran.com. The reader has the full commentary and 9 more tafsirs.