وَإِنَّ جَهَنَّمَ لَمَوْعِدُهُمْ أَجْمَعِينَ · لَهَا سَبْعَةُ أَبْوَٰبٍ لِّكُلِّ بَابٍ مِّنْهُمْ جُزْءٌ مَّقْسُومٌ
"Hell is the appointed meeting place of them all. · It has seven gates; for each gate there is an allotted portion of them."
The choice of the word is worth recording, and I give this as an observation: hell is named here not as a place of punishment but as a place of appointment. The word carries a sense announcing that the parties come there by agreement — and this agrees with the verb ittabaʿaka (they followed) of the preceding verse.
Various explanations of what the gates are and by what they are divided are transmitted in the classical commentaries. The wording of the verse gives no classification; for this reason I set up no table and do not enter into description.
I record it further per the method (Method): no calculation is built upon this number. The same boundary was set at al-Qadr for the thousand months; I rely on that treatment.
Maqsūm is a passive participle and its pattern must be recorded: the same pattern as the maʿlūm weave of the sūra. It was set out in a table in the section on the structure: maʿlūm at 4, 21, 38, and maqsūm here.
I record this as my own reading, and its ground is the shared pattern: throughout the sūra time, measure and respite were named as determined; here, with the same pattern, a share is determined. All four words say "not at random".