瑜伽論記 6.313

6.313

或於語論下，第八解語默，此中真如法界最極甚深，自餘一空及諸緣起因緣法名相似甚深。

From 'Or in discussions' onward, the eighth explains speaking and remaining silent. Herein, the Dharma realm of tathatā is the most exceedingly profound; apart from this, the mere voidness and all phenomena of dependent origination and cause and condition are called 'similarly profound'.