بسم الله الرحمن الرحيم
Muhammad is the name of the Holy Prophet Muhammad (may peace and blessings of Allah be upon him). Salif means past, previous. However, I could find nowhere in any book that any sahabi was named after the name Salif or Muhammad Salif.
Allah knows Best!
Darul Uloom Deoband
This answer was collected from the official ifta website of Darul Uloom Deoband in India.