In Islamic jurisprudence, a fatwa is a legal opinion or ruling issued by a qualified Islamic scholar (mufti) in response to a specific question or issue raised by an individual or community. Fatwas address various aspects of Islamic law (Sharia) and can cover a wide range of topics including religious practices, ethics, social matters, finance, and personal conduct. Fatwas are based on the interpretation of Islamic texts, such as the Quran and Hadith (sayings and actions of the Prophet Muhammad), as well as principles derived from Islamic jurisprudence. While fatwas are advisory in nature and not legally binding, they are highly regarded by Muslims seeking guidance on religious matters.

Fariaz, on the other hand, seems to be a less commonly used term in Islamic jurisprudence or terminology. It's possible that you may be referring to "Faraid," which refers to the Islamic laws of inheritance. Faraid governs the distribution of a deceased person's estate among their heirs according to specific shares prescribed by Islamic law. These shares are determined based on the relationships of the heirs to the deceased and are outlined in detail in Islamic legal texts. The principles of Faraid ensure fairness and justice in the distribution of inheritance among family members in accordance with Islamic teachings. If "Fariaz" refers to something different, please provide additional context for clarification.