Though he is a mercy to all

[Mary]

Though he is a mercy to all, Prophet Muhammad (peace and blessings be
upon him) did not die for Muslims' sins. It is to be made clear that
the entire concept of someone dying for our sins is in utter
contradiction with the Islamic view of the nature of man and God. In
Islam, every individual is responsible for his/her own salvation.
Everyone, male or female, can directly approach God without any
intermediary of a prophet, saint or priest.
"In order for us to be able to understand the Islamic position
regarding this issue, it is important to be clear about certain
points.