Qāf 50:21

Wa jāʾat kullu nafsin maʿahā sāʾiqun wa shahīd

"And every soul came, and with it a driver and a witness."

The scale drops to the singular again. No crowd is described; it says "every soul" — that is, one by one.

نَفْس — a person, a life, a self. In the sixteenth verse the same word was used for "what whispers within": mā tuwaswisu bihī nafsuh. The same word at two tasks: first what speaks inside a person, now what comes to account.

I record this as an observation.

Root: س-و-ق. To drive, to urge on ahead of oneself. Sawq — to drive a thing forward; sūq (a market) — the place to which goods are driven and dispatched; sāq (a leg) — what makes walking possible.

The concrete use of the root is the driving of animals: the shepherd urging the flock along in front of him. The word carries a giving of direction and a disregard for the will of the one driven.

Root: ش-ه-د. To see, to be present, to bear witness. Shahāda — being present and stating what one has seen; mashhad — a place of witness; shahīd — both a witness and (in other uses in the Qurʾān) one who gives his life.

At the root of the word is being present — and this stands in the same field as qaʿīd (seated, ready) in the seventeenth verse and ʿatīd (waiting ready) in the eighteenth.

One brings the person there; the other says what he has brought with him.

The exegetes differ over who these two are:

I adopt no preference in this disagreement. The Qurʾān also speaks of a person's own limbs bearing witness ("On that day We seal their mouths; their hands speak to Us and their feet bear witness to what they earned" — Yā Sīn 36/65), and this gives some support to the second reading.

What can be recorded is this: the verse states not an identity but a function. There is one who brings, and one who tells.

The word comes once more in the thirty-seventh verse — but in an entirely different place:

…aw alqa's-samʿa wa huwa shahīd — "…or gives ear while he is present."

In the twenty-first, shahīd is the witness beside the person. In the thirty-seventh, shahīd is an attribute of the person himself: present, attentive.

The same word, two different subjects. And in both, the primary sense of the root — being present — is at work.

I record this as an observation and add this, as my own reading: the person who is a shahīd in this world (present with his attention) and the person who has a shahīd beside him in the hereafter are named with the same root. To the one who does not do the being-present here, a present one is given there.