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The "daybreak" (fajr) apparently symbolises man's spiritual awakening; hence, the "ten nights" is an allusion to the last third of the month of Ramadan, in the year 13 before the hijrah, during which Muhammad received his first revelation (see introductory note to surah {96}) and was thus enabled to contribute to mankind's spiritual awakening.
Lit., "the even and the odd" or "the one": i.e., the multiplicity of creation as contrasted with the oneness and uniqueness of the Creator (Baghawi, on the authority of Sa'id ibn al-Khudri, as well as Tabari in one of his alternative interpretations of the above phrase). The concept of the "even number" implies the existence of more than one of the same kind: in other words, it signifies every thing that has a counterpart or counterparts and, hence, a definite relationship with other things (cf. the term azwaj in 36:36 , referring to the polarity evident in all creation). As against this, the term al-watr - or, in the more common (Najdi) spelling, al-witr - primarily denotes "that which is single" or "one" and is, hence, one of the designations given to God - since "there is nothing that could be compared with Him" (112:4) and "nothing like unto Him" ( 42:11 ).
An allusion to the night of spiritual darkness which is bound to "run its course" - i.e., to disappear - as soon as man becomes truly conscious of God.
Lit., "a [more] solemn affirmation" (qasam): i.e., a convincing evidence of the existence and oneness of God.
See {7:65-72}, and particularly the second half of note [48] on 7:65 . Iram, mentioned in the next verse, seems to have been the name of their legendary capital, now covered by the sands of the desert of Al-Ahqaf.
See surah {7}, notes [56] and [59]. The "valley" referred to in the sequence is the Wadi 'l-Qura, situated north of Medina on the ancient caravan route from South Arabia to Syria.
For an explanation of this epithet, see surah {38}, note [17].
The above phrase, introduced by the particle fa-amma ("But as for..."), obviously connects with the reference to the "solemn evidence of the truth" in verse {5} - implying that man does not, as a rule, bethink himself of the hereafter, being concerned only with this world and what promises to be of immediate advantage to him (Zamakhshari, Razi, Baydawi).
I.e., he regards God's bounty as something due to him (Razi).
I.e., he regards the absence or loss of affluence not as a trial, but as an evidence of divine "injustice" - which, in its turn, may lead to a denial of God's existence.
I.e., "you feel no urge to feed the needy" (cf. 107:3 ).
Lit., "[when] thy Sustainer comes", which almost all of the classical commentators understand as the revelation (in the abstract sense of this word) of God's transcendental majesty and the manifestation of His judgment.
See note [7] on {73:12-13}.