Statistics of al-Samarqandī Abū ʿAmr ʿUṯmān ibn Aḥmad ibn Muḥammad ibn Hārūn al-Samarqandī (m. 345 h.), al-Ǧuzʾ fī-hi min al-fawāʾid al-muntaqāt al-ḥisān al-ʿawālī