Reference: Fataawa al-Lajnah ad-Daa.imah lil-Buhooth al-‘Ilmiyyah wal-Iftaa. – Volume 3, Page 140, Question No.11 of Fatwa No.1615
Question: What is the news concerning the awaiting Mahdee and the descending of ‘Eesaa (Jesus) the son of Mary ﷺ?
Response: As regards the Mahdee, then it has been mentioned in the ahaadeeth that he shall rule this ummah, so refer to «Sunan Abee Daawood» and «Sunan Ibn Maajah» and other than these from the books of the Sunnah as the ahaadeeth are mentioned therein. [However], there is nothing mentioned in the authentic ahaadeeth indicating a specific time [for his appearance]. Likewise, that which is mentioned regarding ‘Eesaa (Jesus) the son of Mary ﷺ, then refer to the book «at-Tasreeh feemaa Tawaatara fee Nuzool al-Maseeh» and the «Tafseer Ibn Katheer», at the point where it mentions:
{But Allaah raised him (Jesus) up [with his body and soul] unto Himself…}, [Soorah an-Nisaa., Aayah 158]
And [likewise] nothing is mentioned in the authentic ahaadeeth, according to that which we know, indicating a specific time for his descending, however, there is mention that he will descend when the Dajjaal appears.
And with Allaah lies all success and may Allaah send prayers and salutations upon our Prophet ﷺ and his family and his companions.