Isa the Abrogator

S 3:50 Confirming what is in front of me of the Torah and to permit for you some of that which had been forbidden to you and I have come to you with a sign from your lord, so fear Allah and follow me.

From an Answering Islam article:

The Quran even claims that the Lord Jesus made lawful certain things which the Law had prohibited:

"(I have come to you), to attest to the Law which was before me and to make lawful to you part of what was (before) forbidden to you…" S. 3:50

The following exegesis of the above citation is taken from Mahmoud M. Ayoub's book, The Quran and Its Interpreters, Volume II, The House of Imran, State University of New York Press, Albany 1992. All bold and capital emphasis is ours:

"Tabari reports on the authority of Wahb bin Munabbih that ‘Jesus was a follower of the law of Moses. He observed the Sabbath and faced Jerusalem in prayer. He said to the Children of Israel, "I have not come to call you to disobey even one word of the Torah. I have come only to make lawful for you some of the things which were before unlawful and to relieve you of some of the hardships [which the Torah imposed on you]."’ Qatadah, according to Tabari, is said to have declared: ‘The [Law] with which Jesus came was much more lenient than that which Moses brought. The Law of Moses made unlawful for them to eat the flesh of camel, the fat covering the stomach of an animal, and some birds and fish’…

Ibn Kathir interprets the phrase ‘and will make lawful for you some of the things which were before unlawful’ as indicating that Jesus did indeed abrogate some of the precepts of the Torah. Nevertheless, he reports that some scholars have argued that Jesus did not abrogate anything, but only made lawful for the Children of Israel some of the things concerning which they had disagreed. Ibn Kathir, however, prefers the first view…

Razi then raises the following question: ‘It may be argued that latter statement contradicts the one before it. This is because it clearly indicates that he came to make lawful some of the things which were unlawful in the Torah. This would mean that his legislation was contrary to that of the Torah, which would contradict his saying, "I shall confirm the Torah which was before me."’ Razi, however, holds that ‘there is actually no contradiction between the two statements because confirming the Torah can only signify the belief that all that is in it is true and right. If, moreover, the second purpose [of Jesus' apostleship] is not mentioned in the Torah, his making lawful some of the things which are unlawful in it would not contradict his having confirmed the Torah. Furthermore, since the Torah contains prophesies concerning the coming of Jesus, then neither his coming nor HIS LAW would be contrary to the Torah.’

Razi then reports the different views concerning what Jesus made lawful for the Children of Israel. He mentions that Wahb b. Munabbih interpreted this statement as first referring to the rabbis ‘who had invented some false laws which they ascribed to Moses. But when Jesus came, he abolished these laws, and thus matters reverted to what they were during the time of Moses.’ Razi also attributed to Wahb the view that ‘God had made some things unlawful for the Jews as a punishment for the transgressions which they had committed, as God says, "because of the wrongdoing which the Jews committed, We made unlawful some of the good things which were before lawful for them" (Q. 4:160). This prohibition remained until Jesus came and lifted these restrictions from them.’ Razi gives by way of example what Jesus altered in the laws of the Torah, his substituting Sunday for the Sabbath as a day of rest…

Qummi briefly comments that the things which Jesus made lawful for the Children of Israel included work on the Sabbath, and eating such fats and birds which were before unlawful…" (pp. 149-150)

"… Qutb says: ‘The Torah was, like the Gospel, the scripture of Jesus, that is, the foundation of the religion which he came. The Gospel is intended to COMPLETE AND REVIVE THE SPIRIT OF THE TORAH and the spirit of faith which was obscured in the hearts of the Children of Israel. The Torah is the foundation of the religion of Christ and contains the law (shari'ah) on which the social order is based. The Gospel makes only slight modifications in the Torah, but it is a breath and renewal of the spirit of religion. It acts as a source of discipline for human conscience by bringing it into direct contact with God…’

… ‘By Saying, "I shall confirm the Torah that was sent before me" Jesus discloses the nature of true Christianity.’ Qutb argues that the Torah was essential to the message of Jesus, but his message introduced certain minor modifications to it. Jesus made lawful some of the things which God had made unlawful as punishment of the Children of Israel for their sins. ‘Then God wished to show mercy towards them through Christ.’" (pp. 152-153)

"… He [Razi] then presents another possible reason: ‘The Jews knew that Jesus was the messiah who was announced in the Torah, and that he was to ABROGATE their religion…’" (p. 160)

Here is what the English translation of the Tafsir of Ibn Abbas says regarding this text:

(And (I come) confirming) and I have come confirming Allah's divine Oneness in the Religion (that which was before me of the Torah) and all other Scriptures, (and to make lawful) to give you legal dispensation regarding (some of that which was forbidden unto you) such as the meat of camels, the fat of bovines and sheep, the Sabbath, and other things. (I come unto you with a sign) with a token (from your Lord, so keep your duty to Allah) so fear Allah in that which He has commanded you with and repent to Him (and obey me) and follow my command and Religion; (online source; bold and underline emphasis ours)

The Tafsir al-Jalalayn states that:

Likewise, I have come to you, confirming that which was before me of the Torah, and to make lawful for you some of that which was forbidden to you, in it. Thus he made lawful for them fish and birds which had no spikes; it is also said that he made it all lawful for them, so that ba'd, 'some', means, kull, 'all'). I have come to you with a sign from your Lord, He has repeated it for emphasis and to expand upon it: so fear God, and obey me, in what I command you of affirming God's Oneness and being obedient to Him. (online source; bold and underline emphasis ours) On Abrogation and the Relationship between Islamic and Mosaic Law

In a non-Quranic hadith we read:

Narrated Abu Huraira:

Allah's Messenger (ﷺ) said, "The Hour will not be established until the son of Mary (i.e. Jesus) descends amongst you as a just ruler, he will break the cross, kill the pigs, and abolish the Jizya tax. Money will be in abundance so that nobody will accept it (as charitable gifts).

https://sunnah.com/bukhari:2476

This would mean that Isa would abrogate part of the Quran. But how could he do what Allah supposedly did/does?