How to know if Someone is a Sayyid

Sayyids are the descendants of Hashim bin Abd Munaf. Such linage is proven by any of three ways: (i) knowing it, (ii) by the witness of two adil people, or (iii) by it being widely-known that leads to being confident about it. The religious effects of being a Sayyid are the eligibility to collect the Sayyid’s share from the khums in the case of poverty, and the prohibition to collect the zakat from a non-Sayyid.