All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
With regard to the descent of ‘Eesa (Jesus) at the end of times as a just ruler, there are many authentic Ahaadeeth whose meanings have reached the degree of Tawaatur (Tawaatur means being transmitted by a group of narrators from a group of narrators, generation after generation and so forth, and they are all trustworthy people and it is absolutely impossible for them to agree on a lie). For more benefit, please refer to Fataawa 88216 and 129809.
Besides, Jaabir narrated that the Prophet said: “‘Eesa, son of Maryam (Mary) will descend, and their leader [i.e. the leader of Muslims] will say: “Come and lead us in the prayer.” Thereupon, ‘Eesa would say: “No, you yourselves are leaders over one another. He will say that in view of the honour that Allaah has bestowed on this Nation.” [Muslim] This leader is Al-Mahdi as per some narrations.
As regards the narration to which you referred in Saheeh Muslim, then if you mean the narration which reads: “...Your leader would be from amongst yourselves.”; then it does not state that ‘Eesa will be the prayer leader [Imaam]. Indeed, the meaning of this narration is clarified by Ibn Abi Thi’b as he said: “Do you know what does ‘Your leader would be from amongst yourselves’ mean? I (the narrator Al-Waleed ibn Muslim ) said: “Please let me know.” He said: “It means that he will rule with the Book of your Lord The Almighty and the Sunnah of your Prophet .”
For more benefit on Qadianism and the most important false beliefs which they adopt, please refer to Fataawa 5419, 88413 and 86488.
Allaah Knows best.