Partly true but nuanced. Al-Kashi’s teacher (Ayyashi) had tendencies towards exaggeration, and volume 6 sometimes includes reports that ascribe supernatural knowledge to the Imams that later scholars (like al-Mufid) rejected. However, modern scholarship (e.g., Dr. Hossein Modarressi) argues that Volume 6 actually represents al-Kashi’s attempt to curb extremism by naming the Ghulat.
For those looking to dive into the primary material, you can find digital versions and discussions of this classic work on platforms like Internet Archive and Al-Islam.org . rijal kashi volume 6
“My name is ,” the old man whispered. “Not the city. The collector. I wrote six volumes, not five. The sixth was suppressed because it contained al-rijal al-muhmalun — the neglected narrators. Those whose truth would destabilize thrones.” Partly true but nuanced
Volume 6 frequently lists two contradictory reports side by side. Do not take the last report as the final verdict. You must check al-Kashi’s conclusion (usually in a separate paragraph starting with "Aqulu" – I say). Hossein Modarressi) argues that Volume 6 actually represents
Volume 6 specifically serves as a critical window into the lives of scholars and companions from the later era of the Imams, particularly the time leading into the Minor Occultation . What is Rijal al-Kashshi?
If you need a (like the Nawisiyya or Waqifiyya).
Rijal al-Kashi is a cornerstone of Shia biographical evaluation (Ilm al-Rijal), traditionally known as Ma’rifat al-Naqilin. While the original work by Muhammad ibn Umar al-Kashi is lost, the version used by scholars today is the abridged text curated by Shaykh al-Tusi, titled Ikhtiyar Ma’rifat al-Rijal.