Pāli Dictionary
doctrine
不可能之事；无余地；无机会（常用于固定短语 aṭṭhānam etaṃ anavakāso，意为“这是不可能的、无此余地的”）
impossibility; inconceivability; what is out of the question (frequently used in the stock phrase aṭṭhānam etaṃ anavakāso, ‘this is impossible, inconceivable’)
Ud 5.5
aṭṭhānam'etaṃ, bhikkhave, anavakāso yaṃ tathāgato aparisuddhāya parisāya uposathaṃ kareyya, pātimokkhaṃ uddiseyya
MN 29
so tena ñāṇadassanena na majjati nappamajjati na pamādaṃ āpajjati, appamatto samāno asamayavimokkhaṃ ārādheti. aṭṭhānam'etaṃ, bhikkhave, anavakāso yaṃ so bhikkhu tāya asamayavimuttiyā parihāyetha.
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