Who had set up another god with God. Cast him into severe torment."
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Tafseer
'Abdullāh Ibn 'Abbās / Muḥammad al-Fīrūzabādī
تفسير : (who setteth up another god along with allah) who claims that allah has a son and a partner. (do ye twain hurl him to the dreadful doom) allah would say to the angels who recorded his deeds: cast him in the severe torment.
Jalāl al-Dīn al-Maḥallī
تفسير : who has set up alongside god another god! (alladhī ja‘ala ma‘a’llāhi ilāhan ākhara is the subject, with an implicitly conditional import, the predicate of which is [the following]). cast him then into the severe chastisement’ (the explanation of this [dual form of the verb alqiyāhu, ‘cast him’] is as above).