Qom

Qom, in north-central Iran, became an early centre of Twelver Shi'i scholarship and is the site of the shrine of Fatima al-Ma'suma, sister of the imam Ali al-Rida. The traditionist Ibn Qulawayh al-Qummi (d. 978) and the early hadith collectors of the Qummi school were based there; the scholar Ibn Babawayh al-Saduq (d. 991) also took the nisba al-Qummi.