False attributions to Imam #Razi in his Tafsir: they happen for multiple reasons. In complex discussions it's hard to distinguish his own opinions from things he is quoting/disputing. A good edition would sort this out..!

More fundamentally: he is NOT the sole author! THREAD👇🏾
Whether he completed it or not has been a matter of academic dispute, but ʿAbd al-Raḥmān al-Muʿallimī (d. 1966) cast convincing doubt over Razi's authorship of three groups of surahs, in this quite enjoyable paper:
https://tafsir.net/uploads/books/689/Tafseer_Arrazy.pdf?fbclid=IwAR3qa7Pl8yW5yEo3DOg2S_-mcdoYscJ1LzT6AuhXeTgqv6Y3btMQlCZanAY
Surahs 29-36 (al-Ankabut to Ya-Sin)
Surahs 47-56 (Muhammad to al-Waqi'ah)
Surahs 60-66 (al-Mumtahana to al-Tahrim)
-- these all have clear signs of a different authorship, most likely Ahmad b. Khalil al-Khuwayyi (d. 637 AH). The last group also looks more "rushed" than the rest.
There are many indicators of this, which the paper explains. It's possible that Razi wrote a full commentary then parts were lost and the gaps filled in - but it's more apparent that he simply left gaps which he died before completing. A proper tahqiq might shed light.
The fact these realities aren't widely known is seen in this passage from Prof. M. Fadel @Shanfaraa's article: 'Is Historicism a Viable Strategy for Islamic Law Reform?' He draws attention to a shockingly misogynistic passage which he naturally assumes to be authored by Razi:
Fadel 1/2 "In commenting on the verse which states, “And among His signs is that He created for you mates [... Q 30:21]” Rāzī argued not only that the phrase, “He created for you,” is proof that God created women for the convenience of men (a not uncommon position at that time),
Fadel 2/2 "...but he also went so far as to argue that women, unlike men, were not the intended subjects of the law’s moral commands (taklīf). For al-Rāzī, God subjected women to the law’s discipline only for the convenience of men."
Prof. Fadel then contrasts this with how the author treats Q 33:35, but again assumes that the author is Razi. Both al-Rum and al-Ahzab fall into what Mu'allimi calls Group 2 (of 7) and therefore not his authorship. Whoever should be blamed for those words, it's not Fakhr al-Din!
Editions of the work should make clear the distinction between the work of Imam Razi and the sections by Pseudo-Razi. Certainly I will ensure this in my forthcoming translation which includes Ya-Sin, also part of "Group 2".
P.S. - I mentioned this to Prof. Fadel who accepted the point gracefully as expected.
Someone forwarded me the same Arabic excerpt from the Rūm exegesis a few years ago, and since I didn’t know about the authorship issue then, I could only remark:
P.P.S. - this list matches Mu’allimi’s: https://twitter.com/tafsirdoctor/status/987056203778928640?s=21
Nobody asked: what percentage definitely belongs to Imam Razi, according to this? So I counted pages and the answer is: 89% of the Tafsir.
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