摩訶止觀 7.60

7.60

復次，行三十七道品將到無漏城。域有三門，若入此門，即得發真；謂空、無相、無作門，亦名「三解脫門」，亦名「三三昧」。若從正見、正思惟入定，從定發無漏，是時正見智名「大臣」，正定為「大王」；從此得名，名「三三昧」。「非智不禪」，即此意也。

Furthermore, practicing the thirty-seven factors of the path, one is about to arrive at the city of non-outflow. The city has three gates; if one enters these gates, one immediately unfolds truth: that is, the gates of emptiness, signlessness, and wishlessness, which are also termed the 'three gates of deliverance' and the 'three samādhis'. If from right view and right thought one enters concentration, and from concentration unfolds the non-outflows, at that time the wisdom of right view is termed the 'great minister' and right concentration is the 'great king'; taking its name from this, it is termed the 'three samādhis'. 'Without wisdom there is no dhyāna'—this is precisely the meaning.