Hasad and the Sons of Adam

The Quran's narrative of Adam's two sons, told in Surat al Ma'ida without naming them Cain and Abel directly though the exegetical tradition supplies the names from the shared Abrahamic narrative, is read across Islamic commentary as hasad's founding case: one brother's offering is accepted and the other's is not, and rather than examining his own conduct the rejected brother kills the accepted one out of envy at a favour he did not receive, a story the Quran uses explicitly to condemn the murder while tracing its root cause to the envy that preceded it.

Ghazali treats hasad as spiritually corrosive even where it produces no outward act at all, citing a hadith reported in Sunni collections that envy consumes good deeds the way fire consumes firewood, an image meant to convey that the vice damages the envier's own accumulated merit regardless of whether the coveted blessing is ever affected. His prescribed remedy is again therapeutic rather than merely prohibitive, recommending deliberate outward kindness toward the envied person, a practice meant to work against the inward state by shaping conduct until the feeling itself, denied reinforcement through hostile action, begins to weaken, a technique paralleled in the cultivation of mudita, sympathetic joy, that Hindu and Buddhist ethics recommend against their own analogous vices.