Fuṣṣilat 41:19-23

"On the day when the enemies of God are gathered to the Fire, they are all held together. When they reach it, their hearing, their eyes and their skins bear witness against them concerning what they used to do. They say to their skins: 'Why did you bear witness against us?' And they say: 'God, who gives speech to everything, gave us speech.'"

Three witnesses are named: the ear, the eye, the skin.

The triad ear–eye–heart was treated at al-Jāthiya 45/23 and at al-Aḥqāf 46/26. Here in third place there is not qalb (heart) but jild (skin).

This difference is worth recording, and I give it as my own reading: the heart is inside, and is identical with the person himself; the skin, by contrast, is a boundary — the outer surface of the body, the place that touches the world. In the scene of testimony the organ chosen is the one that touches the outside. And indeed the protest too is addressed to the skins: lima shahidtum ʿalaynā.

أَنطَقَنَا ٱللَّهُ ٱلَّذِىٓ أَنطَقَ كُلَّ شَىْءٍ — the answer takes the testimony out of the organs' own decision.

At al-Jāthiya 45/29 I treated the Book's being named with the verb yanṭiqu (it speaks) — there it was the record that spoke, here it is the body. The same root (ن-ط-ق), two separate witnesses in two sūras.

"This supposition of yours that you supposed about your Lord has destroyed you."

The cause is named plainly, and the word is ẓann.

I tabulated there that this word is the whole axis of al-Jāthiya (45/24 in hum illā yaẓunnūn, 45/32 in naẓunnu illā ẓannā). Here the same word is taken a step further: supposition is named not merely as a lack of knowledge but as a cause of destruction.

أَرْدَىٰ — root ر-د-ي: to fall from a height, to tumble and perish. Mardā — a precipice. The concrete picture in the word carries where supposition leads.

And the content of the supposition is given in the preceding verse: wa lākin ẓanantum anna'llāha lā yaʿlamu kathīran mimmā taʿmalūn — "you supposed that God does not know much of what you do." That is, the supposition is not about existence, but about whether one is known or not.

I record this as my own reading: the sūra carries the source of the defect back to before denial — to supposing oneself unseen. And the next sentence says this plainly: wa mā kuntum tastatirūna an yashhada ʿalaykum samʿukum — "you were not concealing yourselves"; that is, they had not even felt the need to hide.