瑜伽論記 7.475

7.475

答：若有獲得乃至修增上慧者，九相心住中第九等持住亦名等引住，用此為依於世俗勝義諦法觀中修增上慧，彼於爾時由法觀故住任運轉道無功用轉不由加行等者，由多修習不由功用止觀雙轉。

The answer states: 'If one has attained... up to cultivating higher wisdom': among the nine stages of mental abiding, the ninth is abiding in samādhi, also called abiding in meditative equipoise; using this as a basis, in the contemplation of conventional and ultimate dharmas, one cultivates higher wisdom; at that time, because of contemplation of dharmas, one abides on the spontaneous path, proceeding without effort and not by deliberate application, and so forth; through extensive cultivation, calming and contemplation proceed together without effort.