On the khums year-end, khums does not apply on the amount that he paid for the debt. Khums is applicable on the amounts that he saved to pay the debt in coming years.
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.
They do not usually declare their beliefs, but if they believe in Islam and in the two testimonies, then they are considered as Muslims. If they believe in the divinity of other than Allah, then they are non-Muslims.
