According to search-discovered classical Islamic scholarship, the Quran establishes absolute spiritual equality between men and women, affirming that the sole criterion for nobility in the sight of Allah is righteousness (Taqwa), not gender. The foundational verse of Surah Al-Imran (3:195) explicitly states, "Never will I allow to be lost the work of any of you, be he male or female," which commentators like Ibn Kathir confirm as a divine guarantee of equal reward for deeds. This principle of spiritual parity is reinforced by verses emphasizing a common origin (4:1) and mutual partnership (9:71). However, a critical distinction exists between 'Musawah' (sameness) and 'Adl' (justice/equity). While spiritual equality is absolute, classical Islamic jurisprudence (fiqh) often interprets certain legal and social injunctions through the lens of 'Adl', leading to differentiated, complementary roles in areas like family and inheritance, which are subjects of extensive contemporary discussion among Muslim scholars. This framework upholds that differing roles do not negate equal worth or access to divine reward.