Ibn Hajar al-Haytami wrote, “Abu Ja’far Muhammad al-Baqir (a) had disclosed so many hidden treasures of sciences, truth behind rulings, and points of wisdom that are not hidden except to ignorant or ill-wishers and thus they have called him Baqir al-‘ilm [splitter of knowledge]. He is a great source and the one who establishes knowledge. He (a) spent his life in worship of God and in the ranks of mystics, he reached a status beyond description. He (a) has many words in the journey towards God and Islamic teachings”
Ibn Hajar , al-Ṣawāʿiq al-muḥraqah, p. 201