Al-Ḥajjāj ibn Yūsuf ibn Maṭar is not a widely recognized historical figure, and it is possible that you might be referring to Al-Ḥajjāj ibn Yūsuf, a prominent figure in early Islamic history. Al-Ḥajjāj ibn Yūsuf al-Thaqafī (circa 661–714 CE) was a governor of Iraq during the Umayyad Caliphate.