Abū Dāwūd al-Sijistānī, Sulaymān b. al-Ashʿath b. Isḥāq b. Bashīr b. Shaddād b. ʿAmr b. ʿImrān al-Azdī (202–275/817–888), was a well-known traditionist and compiler of the ḥadīth collection known as Sunan Abī Dāwūd, the third of the six canonical books of ḥadīth (al-Ṣiḥāḥ al-sitta). The title ‘al-Sijistānī’, occasionally ‘al-Sijzī’ (cf. Abū ʿAwāna, 1/191), which usually comes after his kunya, indicates that he came from Sīstān. The author of Tārīkh-i Sīstān …