بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ
In the name of Allah, the All-Beneficent, the All-Merciful
إِنَّا أَنزَلْنَاهُ فِي لَيْلَةِ الْقَدْرِ
Indeed We sent it down on the Night of Ordainment.
وَمَا أَدْرَاكَ مَا لَيْلَةُ الْقَدْرِ
And what will show you what is the Night of Ordainment?
لَيْلَةُ الْقَدْرِ خَيْرٌ مِّنْ أَلْفِ شَهْرٍ
The Night of Ordainment is better than a thousand months.
English translation: Ali Quli Qarai
The passage opens by tracing the Qurʾān to a single luminous origin — "Indeed We sent it down on the Night of Ordainment" — then halts the listener with a question whose very form magnifies the answer ("what will make you know…?") before declaring the night "better than a thousand months." The present (non-silent) sources read these three verses along two converging lines: the event of revelation and the meaning of "Ordainment" (al-Qadr).
On the revelation, al-Mīzān (Ṭabāṭabāʾī) builds its case on a single word: God says anzalnāhu (sent down all-at-once), not nazzalnāhu (in stages), so the verse names a whole, undivided descent of the Book distinct from its gradual delivery over twenty-three years — pairing the verse with al-Dukhān 44:2–3 ("a blessed night") and contrasting al-Isrāʾ 17:106. The Enlightening Commentary states the same two-mode solution explicitly (the Book came down once entire — to the Prophet's heart, or to the Inhabited House, or to the lowest heaven — and then in portions), and notes the inzāl/tanzīl distinction. Tafsīr al-Qummī gives the concrete image both share: the Qurʾān was sent whole to al-Bayt al-Maʿmūr on the Night of Ordainment, then to the Messenger across twenty-three years. al-Ṭabarsī and al-Ṭūsī add the early authorities — Ibn ʿAbbās (whole, from the Preserved Tablet to the lowest heaven) and al-Shaʿbī ("We began its sending down").
On the name, the sources array the classical options. al-Ṭabarsī lists several: the night of decreeing the year's affairs (al-Ḥasan, Mujāhid); the night of honour/rank; the night a Book of rank descended through an angel of rank to a Messenger of rank; or the night the earth narrows (qadr = constriction) with descending angels. al-Mīzān argues firmly for the first — qadr = taqdīr, the determining of the year's events (life, death, provision), keyed to al-Dukhān's "therein every wise command is parcelled out" — and infers from the continuous tense yufraq that the night recurs every year, rejecting the views that it was a one-time night later lifted. al-Ṭūsī and al-Qummī echo that qadr is exact measure and that the night fixes terms and provisions, while insisting (al-Ṭūsī) that man's striving is not thereby annulled.
On which night, the present sources are unusually candid about disagreement. al-Ṭabarsī surveys the spread (1st, 17th, 21st, 23rd, 27th, 29th), cites Abū Dharr's report that the night endures "until the Day of Resurrection," and preserves Ibn ʿAbbās's "seven"-argument for the 23rd; al-Ṭūsī narrows it to the last ten odd nights, "the 21st or the 23rd" per the Imāmiyya, left unspecified so people worship throughout. The Enlightening Commentary harmonises the Imami reports — determining on the 19th, confirming on the 21st, signing on the 23rd — against the Sunni preference for the 27th, and explains the deliberate concealment.
On "better than a thousand months," the Enlightening Commentary and al-Ṭabarsī both relate the occasion of the Israelite who bore arms (or worshipped) for a thousand months, so the figure is taken literally (~83 years); al-Mīzān and al-Ṭūsī read the superiority as the surpassing worth of worship in it. The hadith dossier of al-Baḥrānī adds the distinctly Shīʿī occasion — the Prophet's vision of the Umayyads climbing his pulpit, after which the night was given as a comfort "better than a thousand months" of Umayyad rule (al-Qāsim "reckoned it" at exactly a thousand) — corroborated, it notes, even by a Sunni line through Imam al-Ḥasan, and frames the 19th/21st/23rd as determine–parcel–execute.