The figures of Qābīl and Hābīl, whose names are elaborated only in post-Qur'anic Islamic tradition, are introduced in the Qurʾān in Q. 5:27-32 through the brief and allusive narrative of Adam's two sons. While clearly resonating with the Biblical account of Cain and Abel (Gen. 4:1-16), the Qurʾanic version presents a markedly concise retelling that presupposes prior familiarity with the story and leaves much of its contextualization to later exegetical elaboration. This contribution offers a close reading of Q. 5:27-32, examining its narrative structure. The paper first introduces the Qurʾanic passage and outlines its reception in classical Islamic exegesis. Particular attention is paid to key terms such as bi-l-ḥaqq ("with truth" or "in truth," or "truly") and qurbān ("sacrifice"), and to the ethical and legal concerns that shape exegetical interpretations of fratricide, sacrifice, and divine justice. The analysis then turns to contemporary scholarship on the Biblical subtext of Q. 5:27-32, engaging with the methodological approaches developed by Reynolds, Cuypers, Firestone, Pregill, and Zellentin, among others. By bringing classical Islamic exegesis into conversation with modern studies of Qurʾanic intertextuality, this paper argues that the Cain and Abel narrative functions as a privileged site for observing how the Qurʾān reworks earlier traditions while articulating a distinctive moral and theological vision.