﴿ حَتَّىٰٓ إِذَا مَا جَآءُوهَا شَهِدَ عَلَيْهِمْ سَمْعُهُمْ وَأَبْصَٰرُهُمْ وَجُلُودُهُم بِمَا كَانُوا۟ يَعْمَلُونَ ﴾

“till, when they come close to it, their hearing and their sight and their [very] skins will bear witness against them, speaking of what they were doing [on earth].”

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.