๔. ปิยสูตร
TIPITAKA Volume 15 : PALI ROMAN Sutta Pitaka Vol 7 : Sutta. Saṃ. Sa. Catutthaṃ piyasuttaṃ
[334] Sāvatthiyaṃ ... Ekamantaṃ nisinno kho rājā pasenadikosalo bhagavantaṃ etadavoca idha mayhaṃ bhante rahogatassa paṭisallīnassa evaṃ cetaso parivitakko udapādi kesaṃ nu kho piyo attā kesaṃ appiyo attāti tassa mayhaṃ bhante etadahosi ye ca kho keci kāyena duccaritaṃ caranti vācāya duccaritaṃ caranti manasā duccaritaṃ caranti tesaṃ appiyo attā kiñcāpi te evaṃ vadeyyuṃ piyo no attāti atha kho tesaṃ appiyo attā taṃ kissa hetu yaṃ hi appiyo appiyassa kareyya taṃ te attanāva attano karonti tasmā tesaṃ appiyo attā ye ca kho keci kāyena sucaritaṃ caranti vācāya sucaritaṃ caranti manasā sucaritaṃ caranti tesaṃ piyo attā kiñcāpi te evaṃ vadeyyuṃ appiyo no attāti atha kho tesaṃ piyo attā taṃ kissa hetu yaṃ hi piyo piyassa kareyya taṃ te attanāva attano karonti tasmā tesaṃ piyo attāti.