Imam Abū Yūsuf, may Allah have mercy on him (d. 182 AH)

Answer

Imam, Qadi Yaʿqūb Abū Yūsuf was born in Kufa; he was a very great scholar and imam of ḥadīth. ʿAllāmah adh-Dhahabī, may Allah's mercy be upon him, counted him among the ḥuffāẓ of ḥadīth, and wrote that Imam Aḥmad ibn Ḥanbal and Yaḥyā ibn Maʿīn were among his students. During his tenure as judge (qaḍāʾ), he used to perform two hundred rakʿahs every day.

Source: Fatawa Mahmudiyya

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