“Those with whom you have made binding undertakings—give them their share” (al-Nisāʾ 4:33) has been read against later kinship-based inheritance rules. A “share” need not in every context mean a compulsory inheritance portion; covenants and other obligations require separate analysis.
“When [others] are present at the distribution” (al-Nisāʾ 4:8) introduces a distinct concern for people attending an estate division. Kind treatment or a voluntary gift to non-heirs can coexist with fixed legal shares.
These two cases show why the character of a benefit—inheritance, covenantal obligation, or recommended charity—must be established before a claim of abrogation.