Chiddushei HaRa’ah on Ketubot is one of the only extant volumes of 13th-century Rabbi Aharon HaLevi’s commentary on the Talmud, along with his novellae on tractates Sukkah and Beitzah. His commentaries on other tractates are also entitled Chiddushei HaRa’ah, but are essentially commentaries on Rabbi Issac Alfasi’s Halakhot. HaLevi’s commentary on tractate Ketubot is lengthy and analytical, often considering multiple interpretations before arriving at the author’s own suggested understanding.