Brahmajalasutta 1.9.5

1.9.5

‘Pharusaṃ vācaṃ pahāya pharusāya vācāya paṭivirato samaṇo gotamo, yā sā vācā nelā kaṇṇasukhā pemanīyā hadayaṅgamā porī bahujanakantā bahujanamanāpā tathārūpiṃ vācaṃ bhāsitā’ti—

‘The ascetic Gotama has given up harsh speech. He speaks in a way that’s mellow, pleasing to the ear, endearing, going to the heart, polite, and likable and agreeable to the people.’