維摩經略疏垂裕記 3.107

3.107

「問何故」等者，此還用前別釋為問，直通緣度，豈獨諦耶？答中二意：一者從便、二者攝他，是則二俱用彼別名以成通義。

Regarding "Asking why, etc.": this again uses the previous distinctive explanation to pose the question: if the straight [mind] extends commonly to the conditions and perfections, why only the truths? The answer has two senses: first, following convenience; second, gathering others. Thus both utilize those distinctive names to complete the common meaning.