Analysis of information sources in references of the Wikipedia article "Abd Allah ibn al-Mubarak" in English language version.
Hanafi literature, of course, celebrates Ibn al-Mubārak's admiration for, and dependence on, Abū Hanīfa – for example, our earliest extant biographical dictionary of Abū Hanīfa and the Hanafi school includes Ibn al-Mubārak among nine members of the generation of Abū Hanīfa's immediate disciples.
Ibn al-Mubarak may in fact have been a follower of Abū Hanifa's school of law; at the least, his legal reasoning was heavily influenced by Hanafi methodology.