完整原文 · 分页阅读 当前仅加载大正藏 0421a 版页;异文与注释未混入正文,稳定行号可直接引用。
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光邊應在色界。後師據第四禪既證捨受
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無厭背義。雖各一途終非通允。故今家解
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依大論文並破三解。此一位既然。已下餘
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位並準大論。次內無色相等者。明第二背
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捨。於中先明內無色相。仍先明析滅。次明
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體滅。體滅中又二。先法。次喻。喻如好馬等
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者。欲滅骨人骨人即滅。名任人意。好人亦
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爾。用此析體二種觀者。依於藏通二種門
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故。準前文云是界外法亦可通於別圓法
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也。亦恐宿曾修此門故。若但用小不須衍
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門。若通教事禪亦可用衍。有此眾意故用
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兩門。骨人去已新法未發者。位在中間未
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發內淨。以不淨下明外觀色。初簡示色體。
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次釋所以。若修下辯發不同。忽見下正釋
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前文中間定相。又見下發二禪相。次明五
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支結位。如文。三明淨背捨中初出異釋。
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成論四禪共淨背捨者。前云成論判第三背
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捨在於色界。故知四禪共淨背捨。今以兩禪
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下今文正判。用此一意盡破前三。何者。以
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極淨故在第四禪。勝處一切處非第四不
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成。有身證故在第三禪。仍約初後以分
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三四。若定結位應歸第三。故準此解前三
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俱壞。緣淨故淨者。以第四禪為極淨緣。此
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色起時瑩於八色者。三四起時瑩練初二。故
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名三四以為初二色之淨緣。是故三四獨
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得淨名。是故更開四句釋之。前三屬初二
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第四屬第三。初句者。實是不淨上更加假
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想故也。禪門云。不淨有三。一者出處不淨。
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謂骨人。二者所照不淨。謂外不淨境。三者
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