Cain, known in Arabic as Qābīl, is a significant figure in Islamic tradition as the first human to commit murder. The Quran narrates his story in Surah Al-Ma'idah (5:27-31), where he and his brother Abel (Hābīl) are instructed to offer sacrifices to Allah. According to classical exegesis, such as that of Ibn Kathir, Abel offered his best, while Cain presented his worst. The acceptance of Abel's offering and the rejection of his own ignited a deep-seated envy in Cain, which ultimately led him to slay his pious brother. This tragic event establishes a powerful Quranic lesson on the destructive consequences of jealousy, the importance of piety (taqwa) in worship, and the sanctity of life. The narrative concludes with Cain's profound remorse, amplified by a divine lesson from a raven that taught him how to bury his brother's body, forever marking him as a symbol of loss and regret.