Abū Saʿīd al-Kadumī, Muḥammad b. Saʿīd b. Muḥammad, was an Ibāḍī scholar in Oman during the 4th/10th century. His name is derived from Kadum, a region in the north of the province of Bahlā, and his native village was al-ʿĀriḍ, where his tomb is now found (Abū Saʿīd, al-Istiqāma, 2/99; al-ʿIbrī, 3). He lived in Nizwā for some time, and had relatives living there as well (al-Kindī, Muḥammad, 5/253). None of the extant accounts say when he was born or when he died. However, from information on his relations with S…