According to search-discovered classical Islamic scholarship, the Quranic principle 'For men is a share' (لِّلرِّجَالِ نَصِيبٌ), established in Surah An-Nisa 4:7, represents a foundational pillar of divine justice in Islamic law. Tafsir authorities like Ibn Kathir and Al-Tabari explain that this verse was a revolutionary decree that abolished the unjust pre-Islamic (Jahiliyyah) customs where inheritance was restricted to adult males capable of warfare, often disinheriting young boys. The verse established a universal, divinely-ordained right (Naṣīban Mafḍan) for all male relatives, regardless of age, to receive an allotted portion from the estate of deceased parents and kin. Al-Qurtubi emphasizes that this verse laid the groundwork for the detailed shares specified later in the Surah, shifting the basis of inheritance from tribal might to divine right and kinship. This principle ensures economic security and recognizes the financial responsibilities placed upon men within the Islamic family structure, forming a cornerstone of the comprehensive and equitable system of 'Ilm al-Farāʾiḍ' (the science of inheritance).