Al-Haseeb

The root. Al-Haseeb comes from ḥ-s-b, the root behind ḥisāb (reckoning, calculation) and ḥasb (sufficiency, enough) — the same root gives Arabic the phrase ḥasbiya Allāh, "Allah is sufficient for me." The two senses meet in this name: to reckon something fully is to leave nothing out of account, and what is sufficient needs nothing added to it. Al-Haseeb is shaped on the faʿīl pattern, naming both a complete accounting and a sufficiency that makes any other guarantee unnecessary.

What it means here. Al-Haseeb is read in two directions together: Allah keeps an exact reckoning of everything a person does, down to what is hidden, and Allah alone is sufficient as the one relied upon, so that no other reckoner or guarantor is needed alongside Him. It differs from Al-Hafeedh, which is read through preserving a thing intact, by its emphasis on settling accounts — where Al-Hafeedh keeps the record, Al-Haseeb is the one who reckons by it and whose reckoning alone suffices.

Where it is met. The phrase "Allah is sufficient as a reckoner" closes verses in Surah An-Nisa and Surah Al-Ahzab, describing those who deliver Allah's messages and fear no one but Him. Surah An-Nisa also states plainly that Allah keeps a reckoning of all things. The same root gives the Quran its word for the Day of Reckoning, tying the name directly to the accounting every person is told to expect.