وَٱلسَّمَآءِ ذَاتِ ٱلْبُرُوجِ
By the sky full of constellations,
Compare 85:1 and 86:1
highlighted words differ between verses
وَٱلسَّمَآءِ وَٱلطَّارِقِ
By the heaven and the nightly star!
85:1 'wa al-sama' dhati al-buruj' and 86:1 'wa al-sama' wa al-tariq' are back-to-back surah openings both beginning with an oath by the sky — al-buruj (the constellations) vs al-tariq (the night-comer).
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