Viyahapannatti 7.1.330

7.1.330

samaṇovāsagassa ṇaṃ bhaṃte! sāmāiyakaḍassa samaṇovassae acchamāṇassa tassa ṇaṃ bhaṃte! kiṃ riyāvahiyā kiriyā kajjai? saṃparāiyā kiriyā kajjai?
goyamā! no riyāvahiyā kiriyā kajjai, saṃparāiyā kiriyā kajjai|
se keṇaṭṭheṇaṃ bhaṃte! evaṃ vuccai–no riyāvahiyā kiriyā kajjai? saṃparāiyā kiriyā kajjai?
goyamā! samaṇovāsayassa ṇaṃ sāmāiyakaḍassa samaṇovassae acchamāṇassa āyā ahigaraṇī bhavai, āyāhigaraṇavattiyaṃ ca ṇaṃ tassa no riyāvahiyā kiriyā kajjai, saṃparāiyā kiriyā kajjai| se teṇaṭṭheṇaṃ|

"Venerable Sir! Does an iryāpathikā activity or a sāmparāyikā activity accrue to a lay follower who has performed the sāmāyika and is staying in the monks' shelter?"
"Gautama! An iryāpathikā activity does not accrue; a sāmparāyikā activity accrues."
"For what reason, Venerable Sir, is it said: 'An iryāpathikā activity does not accrue; a sāmparāyikā activity accrues'?"
"Gautama! For a lay follower who has performed the sāmāyika and is staying in the monks' shelter, his self is a receptacle [of weapons/passions]; and because his self is a receptacle, an iryāpathikā activity does not accrue to him, but a sāmparāyikā activity accrues. For that reason [it is said so]."