Short answer

The Prophet Muhammad (ﷺ) died in 632 and was buried in Medina, where his grave is today. His soul is in the life between death and the Last Day, which the Qur'an calls the barzakh. Jesus did not die. Muslims believe God (﷾) raised him up alive to Himself, and he is in heaven now. On the night of his Ascension, the Prophet (ﷺ) met Jesus in the second heaven. Jesus will come back before the Last Day, live on earth, and then die like every man. The Qur'an says: "Muhammad is no more than a messenger", and that he too would die. The Prophet (ﷺ) said the earth does not consume the bodies of the prophets. Both are honoured servants of God (﷾). Neither is God, and only God (﷾) is worshipped.

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