Did Ali Permit Muta and blame Umar for it?

Here is the ahadith presented by our opponents. Tafseer Durre Manthur Volume 2 p. 40 commentary Nisa 24:

"Hakim was asked whether the verse on Mut'ah has been abrogated, he said "No, Ali (RA) said: The Mut'ah is a blessing from Allah to his servants. If it were not for Umar forbidding it, no one would commit (the sin) of fornication except the wretched (Shaqi; an utmost wrong-doer)"

I asked a brother check Imam Suyuti's Tafseer Durre Manthur and see how it connects to Imam Ali (as) through a chain. Here is what he discovered.

الَ ابْنُ جُرَيْجٍ : وَأَخْبَرَنِي مَنْ أُصَدِّقُ ، أَنَّ عَلِيًّا ، قَالَ بِالْكُوفَةِ : لَوْلا مَا سَبَقَ مِنْ رَأْيِ عُمَرَ بْنِ الْخَطَّابِ , أَوْ قَالَ : مِنْ رَأْيِ ابْنِ الْخَطَّابِ لأَمَرْتُ بِالْمُتْعَةِ ، ثُمَّ مَا زَنَا إِلا شَقِيٌّ Ibn Jurayj said: Some man I believe said that `Ali said "The Mut'ah is a blessing from Allah to his servants. If it were not for Umar forbidding it, no one would commit fornication except the wretched."

The first narrator here is ibn Jurayj who was born in 74 AH, while Imam Ali (as) passed away in 40 AH. Since ibn Jarayj did not provide details who the man is who is connected to Ali his evidence is based on hearsay. Therefore this is insufficient proof. From this one can conclude the ahadith chain is rated as Majhul.