Ka’b al Ahbar was a tabiee if I recollect correctly, a convert from Judaism. He was a contemporary of Sayyidina Umar (r.a) but was not a Sahaba. So wondering A) when grandshaykh (q) says Mawlana is like Kab al Ahbar to whom does grandshaykh liken himself to (Sayyidina Umar r.a, perhaps?).
The reference is to the literal meaning of ka’b as cube and ahbar as scholars and scribes. The meaning is you are the perfect scholar and scribe for me.
Hajj Gibril Haddad