With Ambaṭṭha 1.3.1

1.3.1

Tena kho pana samayena brāhmaṇassa pokkharasātissa ambaṭṭho nāma māṇavo antevāsī hoti ajjhāyako mantadharo tiṇṇaṃ vedānaṃ pāragū sanighaṇḍukeṭubhānaṃ sākkharappabhedānaṃ itihāsapañcamānaṃ padako veyyākaraṇo lokāyatamahāpurisalakkhaṇesu anavayo anuññātapaṭiññāto sake ācariyake tevijjake pāvacane:

Now at that time Pokkharasāti had a student named Ambaṭṭha as his resident pupil. He was one who recited and remembered the hymns, and had mastered in the three Vedas, together with their vocabularies and ritual performance, their phonology and word classification, and the testaments as fifth. He knew them word-by-word, and their grammar. He was well versed in cosmology and the marks of a great man. He had been authorized as a master in his own tutor’s scriptural heritage of the three Vedas with the words: