Salamun alaikum, Am I subject to khums in the following context, I study in a university abroad and my parents take care of my expenses from university fees to pocket money. However, I do not get a fixed salary; money is sent to me whenever I require it. With regards to the following context while taking into consideration that I have never paid khums before due to my ignorance, I have three questions: 1) Must I pay khums in such a context? 2) According to Ayt. Khamenei, if I have never paid khums, do I need to pay the khums of all the years since my bulugh? Thank you very much in advance, Wassalamu alaikum we rahmatullah wabarakatuh