Final answer:
Abdul Mutalib's specific tribal support from Medina is not detailed in historical sources. However, his grandson Muhammad later received support from various tribes in Medina, which led to the foundation of a unified Islamic community under the Constitution of Medina.
Step-by-step explanation:
Abdul Mutalib, the grandfather of the Prophet Muhammad, faced challenges from his uncles regarding leadership and rights within Mecca.
Although historical sources do not provide explicit details of a specific tribe from Medina coming to Abdul Mutalib's aid during his internal family struggles, the concept of tribal support becomes significant later during Muhammad's leadership.
Following Abdul Mutalib, Muhammad eventually found support in Medina, where members of various tribes pledged allegiance and offered him and his followers refuge during the Hijra, marking the start of the Islamic calendar.
In Medina, Muhammad established the Constitution of Medina, formalizing the alliance between the previously polytheist Arabs, Jewish Arabs, and Muhammad's ummah. This marked a pivotal moment in Islam where the new community grew, setting the foundation for the eventual return of Muhammad and his followers to Mecca in triumph.