Q- Is this Hadith authentic? There is a Hadith in Al Mu’jamul Kabir of Imam Tabarani (rahimahullah) that Nabi (sallallahu ‘alayhi wa sallam) said: “Allah married me to Maryam, [mother of ‘Isa ‘alayhimas salam] and Kulthum [sister of Musa ‘alayhis salam) and Asiyah (rahimahallah), the wife of Fir’awn, in Jannah.”
Imam Tabarani (rahimahullah) has recorded this narration with two chains. One chain is weak and the other extremely weak. (Al Mu’jamul Kabir, Hadith: 5485 and 8006. Refer: Lisanul Mizan, vol. 5 pg. 284, Majma’uz Zawaid, vol. 9 pg. 218)
After citing other versions of this Hadith, Hafiz Ibn Kathir (rahimahullah) says, ‘All these narrations have defective chains.’ (Al Bidayah Wan Nihayah, vol. 2 pg. 241)
And Allah Ta’ala Knows best
3 Fatwa links below
https://hadithanswers.com/nabi-sallallahu-alayhi-wa-sallam-marrying-maryam-alayhas-salam-kulthum-and-asiyah-radiyallahu-anhuma-in-jannah/
https://islamqa.org/hanafi/darululoomtt/148670/the-prophets-s-a-w-marriage-to-maryam-a-s-in-jannah/
https://www.islamweb.org/en/fatwa/90285/claim-that-wife-of-pharaoh-will-be-married-to-the-prophet-sallallaahu-alayhi-wa-sallam-in-paradise