According to search-discovered classical Islamic scholarship, the act of blaming another for one's own sin is identified by the grave Quranic term **Buhtan** (بُهْتَان), meaning calumny or slander. Verse 4:112 of the Quran explicitly states that one who commits a fault and then accuses an innocent person of it has burdened themselves with both slander and a 'manifest sin' (ithm mubin). Tafsir Ibn Kathir explains this verse in the context of a historical incident where a thief tried to shift blame onto an innocent person, for which divine revelation intervened to establish justice. This highlights a core principle: the sin is compounded, combining the initial transgression with the profound injustice of harming an innocent's reputation. The Prophet Muhammad (ﷺ) further clarified that Buhtan is distinct from backbiting, defining it specifically as making a false statement about someone. Thus, this act is not merely dishonesty; it is a grave offense against both Allah and the wrongly accused, tearing at the fabric of social trust and justice.