Full biography of Al-Imam Abdullah ibn Al-Mubarak, the one who mastered it all
by Dr Muhammad Musa Al-Shareef (فرج الله عنه)
If there's anyone's biography you should study, it's Imam 'AbdAllah bin al-Mubarak (181. AH).
He mastered almost every science in Islam, and many scholars have said they have not seen anyone like him.
He was also a warrior Imam known for Jihad.
Imagine an imam who was an authority in 'aqidah, fiqh, hadith, Arabic, poetry, history, and also an ascetic and mujahid.
There are other authentic reports of him engaging in duels with kuffar soldiers.
May Allah be pleased with him.