A JEW AND A PERSON
He (PBUH) was sitting with His companions in an open place in Medina. A funeral was passing by in front of them. It was obvious in every respect, that the funeral was a Jewish one. The prophet Muhammad (PBUH) stood up and waited until the funeral passed by. His companions were amazed and warned him by thinking “maybe He had not realized the situation”:
“O Apostle of Allah! This was a Jew.”
In other words, He was not a Muslim. So, it had not been necessary for you to stand up.
Yet, the prophet Muhammad (PBUH) had been aware of everything from the beginning; so, he answered:
“But at the same time he was a human.” (1)