Aḥsanallahu ilaykum ya Ustadh, In Kitāb at-Tawḥid, in the section on the Masāil, the 15th point reads: “This matter was unknown to most of the Companions.” Does this mean the Companions did not have complete Tawḥid? I may have misunderstood, so please clarify this doubt for me وبارك الله فيك

Ustadh AbdulAziz al-Haqqan

No, it means that a small number of issues might have been unknown to some of the sahabah.