This is an excerpt from a Tamil-language website, DarulIslamFamily.com, specifically a series titled "தோழர்கள்" ("Companions"), focusing on the life of Fayruz Ad-Daylami (رضي الله عنه). The excerpt details a pivotal event where Fayruz, motivated by his sister's plight and guided by a divinely-revealed prophecy, orchestrated the assassination of the false prophet Aswad Al-Ansi, restoring order to Yemen and reinstating Islamic rule. The narrative interweaves this key event with historical context, highlighting the political climate of 7th-century Arabia, the significance of the initial correspondence between the Prophet Muhammad (ﷺ) and the Persian King Khosrau, and Fayruz's subsequent encounter with Caliph Umar. The overall purpose is to recount a heroic act within the context of early Islamic history, emphasizing faith, loyalty, and divinely-guided action.