Zawil Furud (primary heirs entitled to fixed shares) are the specific relatives mentioned in the Quran who inherit predetermined portions of an estate under Islamic inheritance law (Ilm al-Fara'id). These shares are explicitly prescribed in Surah an-Nisa (4:11-12, 176), representing Allah's divine allocation that cannot be altered by human preference. The zawil furud include: the husband (receives 1/4 if wife has children, otherwise 1/2); the wife (receives 1/8 if husband has children, otherwise 1/4); the daughter (receives 1/2 if alone, or 2/3 if multiple daughters share); the son's daughter (in certain circumstances); the mother (receives 1/6 if deceased has children or multiple siblings, otherwise 1/3 under specific conditions); the father (receives 1/6 if deceased has children); the full sister; the paternal sister; the maternal brother; and the maternal sister. These fixed shares take priority in distribution before residuary heirs (asabat) receive anything. The intricate system ensures justice, protects vulnerable relatives, and prevents wealth concentration. Islamic inheritance law reflects Allah's comprehensive knowledge of human relationships and needs. Understanding zawil furud requires specialized study, as shares interact, adjust, and sometimes shift through principles like 'awl (proportional reduction) and radd (return of surplus). The system embodies divine wisdom in preserving family bonds and economic justice across generations. For believers, zawil furud is a divine allocation. They accept it as Allah's wisdom, trust its justice, and implement it correctly. They study the rules, ensure that heirs receive their shares, and seek knowledge to fulfill this religious duty.