Al-Risala al-Dahabiyya fil Tibb

Among such books is Al-Risala al-Dahabiyya fil Tibb (the gold medical dissertation) for which sources are counted reaching sometimes to Muhammad ibn Jumhoor, and sometimes to al-Hassan ibn Muhammad al-Nawfali who was accepted as trustworthy by al-Najjashi who described him as "highly esteemed and trustworthy; he narrated one text about al-Rida (A.S.)," which could be "the gold medical dissertation."

It is possible that the dissertation's fame among scholars, and their consensus in various centuries that the Imam (A.S.) was its author, and that nobody doubted such an authorship, are enough proofs leading the researcher to comfortably and almost positively conclude that it was indeed from the intellectual output of Imam al-Rida (A.S.) himself.

Adapted from: "Imam al-Ridha (a.s.), A Historical and Biographical Research" by: "Muhammad Jawad Fadlallah"