Quran and Ahlul-Bayt a.s.
Is this Hadith attributed to Muhammad?
Assuming this is really true. What happened to Jesus? Did He die naturally later?
The Hadith is narrated by Ibn Abbas. He is the cousin of the prophet. There is a general rule that says whenever the companions say something related to the unknown, such as what is there in the Paradise, then they must have taken it from the prophet. otherwise they should clarify. This is especially true taking into consideration that Muslims believe that the scriptures of old prophets have been distorted, and Muslims were discouraged from reading the ancient scriptures. Yes Shia believe that the Imams have the scriptures of the ancient prophets.
Then the Shiites and many Sunnis believe that the Jewish teachings have infiltrated the Sunni Hadith, through a rabbi called Kaab al Ahbar and others.
During the lifetime of the prophet this rabbi rejected Islam. and later on he joined Umar and Muaawiya and declared his conversion. Many thinks that his conversion was not genuine. He joined the caliph Umar in his journey to Jerusalem and was an influential figure.
Now regarding what happened to Jesus, the general Muslim view is that he is still alive, and he will return after the return of the Mahdi, and will have a great role to play in that time. Yes, there are some details regarding how Jesus was raised, where Muslim believes that there was a time when his soul left his body and then it returned again.