Islamic professors studied under junior colleagues in other fields

Evidence

This trenchantly “interdisciplinary”—or indeed predisciplinary—education also explains certain modes of academic training and learning: it was often the case that a professor (shaykh) of hadith might sit as a student in the study circle (halqa, somewhat like a classroom) of a professor, at times his junior in age, who taught, say, logic, or that a logician might attend, as a student, the teaching circle of a law professor or a linguist. Such practices were not just external forms; rather, they were indicative of profound dialectical relationships between the various fields of knowledge. — Wael Hallaq, Restating Orientalism, 146

Categorization

• QUESTION: Does this elder-studying-under-junior practice have parallels in any other knowledge traditions (e.g., early modern European academies)?
• XREF: connects to: Professors are themselves empowered and taught by students — bell hooks, Teaching to Transgress: Education as…, 296