Muʿjam Rijāl al-Ḥadīth
p. 47Vol. 24 Entry no. 15187
Edition: 5th edition, 1413 AH / 1992 CE; editor and publisher not stated in the source
The first of 2 entries on him in this book under ابن المعلم.
His other headings there: المفيد
ابن المعلم: تقدم بعنوان محمد بن محمد بن النعمان الشيخ المفيد - قدس سره -.