Hey everyone, could you please provide me with the above?
The only real definition I find is this one from AN I 234-235:
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Dutiyasikkhattayasuttaṃ
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‘‘Tisso imā, bhikkhave, sikkhā. Katamā tisso? Adhisīlasikkhā, adhicittasikkhā, adhipaññāsikkhā.
‘‘Katamā ca, bhikkhave, adhisīlasikkhā? Idha, bhikkhave, bhikkhu sīlavā hoti…pe… samādāya sikkhati sikkhāpadesu. Ayaṃ vuccati, bhikkhave, adhisīlasikkhā.
‘‘Katamā ca, bhikkhave, adhicittasikkhā? Idha, bhikkhave, bhikkhu vivicceva kāmehi…pe… catutthaṃ jhānaṃ upasampajja viharati. Ayaṃ vuccati, bhikkhave, adhicittasikkhā.
‘‘Katamā ca, bhikkhave, adhipaññāsikkhā? Idha, bhikkhave, bhikkhu āsavānaṃ khayā anāsavaṃ cetovimuttiṃ paññāvimuttiṃ diṭṭheva dhamme sayaṃ abhiññā sacchikatvā upasampajja viharati. Ayaṃ vuccati, bhikkhave, adhipaññā sikkhā. Imā kho, bhikkhave, tisso sikkhā’’ti.
And
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Paṭhamasikkhattayasuttaṃ
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‘‘Tisso imā, bhikkhave, sikkhā. Katamā tisso? Adhisīlasikkhā, adhicittasikkhā, adhipaññāsikkhā.
‘‘Katamā ca, bhikkhave, adhisīlasikkhā? Idha, bhikkhave, bhikkhu sīlavā hoti…pe… samādāya sikkhati sikkhāpadesu. Ayaṃ vuccati, bhikkhave, adhisīlasikkhā.
‘‘Katamā ca, bhikkhave, adhicittasikkhā? Idha, bhikkhave, bhikkhu vivicceva kāmehi…pe… catutthaṃ jhānaṃ upasampajja viharati. Ayaṃ vuccati, bhikkhave, adhicittasikkhā.
‘‘Katamā ca, bhikkhave, adhipaññāsikkhā? Idha, bhikkhave, bhikkhu ‘idaṃ dukkha’nti yathābhūtaṃ pajānāti…pe… ‘ayaṃ dukkhanirodhagāminī paṭipadā’ti yathābhūtaṃ pajānāti. Ayaṃ vuccati, bhikkhave, adhipaññāsikkhā. Imā kho, bhikkhave, tisso sikkhā’’ti. Navamaṃ.
Mettāya