According to search-discovered classical Islamic scholarship, the prohibition of envy (Tahrim al-Hasad) is a cornerstone of Islamic ethics and spiritual purification. Hasad is defined not merely as jealousy, but as the malicious desire for a blessing—be it wealth, knowledge, or status—to be removed from another person. The Quran directly forbids this state of heart in verses like Surah An-Nisa 4:32, 'And do not wish for that by which Allah has made some of you exceed others.' Classical authorities like Ibn Kathir explain this as a command against the very root of envy. This prohibition is thematically reinforced in Surah Al-Hijr 15:88 and Surah Ta-Ha 20:131, which forbid even 'extending your eyes' toward the enjoyments of others. Scholars like Ibn Qayyim classify hasad as a primary disease of the soul that signifies discontent with Allah's divine wisdom and distribution. It is crucially distinguished from 'ghibtah'—a permissible form of aspiration where one desires a similar blessing for oneself without wishing for its removal from the other. The severe danger of hasad is captured in the famous hadith where the Prophet (ﷺ) warned that envy 'devours good deeds just as fire devours wood,' highlighting its spiritually corrosive nature.