With the Brahmin Doṇa 2.2

2.2

‘na samaṇo gotamo brāhmaṇe jiṇṇe vuḍḍhe mahallake addhagate vayoanuppatte abhivādeti vā paccuṭṭheti vā āsanena vā nimantetī’ti.

the ascetic Gotama doesn’t bow to old brahmins, the elderly and senior, who are advanced in years and have reached the final stage of life; nor does he rise in their presence or offer them a seat.