教文上之證據。對理證而云。 日本真宗所立，教行信證之中略。教行信證文類二曰：「真宗教證興片州。」
Teaching and evidence, doctrine and its evidential results, or realization.
The two ways of learning, by teaching or experience.
一教證 (一)指聖教在經論中所顯示之證據；又作文證。而對理論上之證明則稱為理證。 (二)為教行、證行，或教道、證道之並稱。（參閱「教證二道」5802）p5802