Isa Ibn Maryam (AS):

Allah had declared in Al Qur’an:
“And (for) their saying:
‘Indeed we have killed the Messiah, Jesus the son of Mary, the Messenger of
Allah’. And they did not kill him, nor did they crucify him but (another) that
was made to resemble him to them. And indeed those who differ over it
are in doubt about it. They have no knowledge of it except the following of
assumption. And they did not kill him for certain.” (Surah An Nisaa’/The Women:157).

The belief of Muslim upon Prophet Isa (Jesus) (Peace be upon him), is that he is still alive. He ascended by Allah's leave, body and soul, as mentioned in this verse:
ْ“Rather, Allah raised him to Himself. And ever is Allah Exalted in Might and
Wise.” (Surah An Nisaa’/The Women: 158).

Both verses above explicitly showed that Prophet Isa (peace be upon him) was not killed,nor crucified, but Allah had saved both his body and soul, by raising him to heaven. And at the near time to The Hour, he will descend to kill the Dajjal (The Liar, the Anti Christ). He will not bear any new teachings, instead he will follow the teachings of Prophet Muhammad Sallallaahu’alayhe wa Sallam. After completing his tasks, then he will die and will be buried on earth. This occurrences were narrated by Abu Huraira (may Allah be pleased with him), who indicated The Prophet Sallallaahu’alayhe wa Sallam said:
“I am the most rightful person to honor Isa (Jesus), son of Mary, because there will be no prophet between my time and his…(he then explained the coming of Prophet Isa (peace be upon him), and continued his saying), Prophet Isa will live on earth at a length Allah willing him to, and after that he will die, and the Muslims will perform Janaza prayer and bury him.”

(Collected by Ahmad, Hadith no, 9349 and
the grade is Sahih according to Al Albani).