Brahma Sūtra 1.3.34
Śaṅkara
Advaita Vedānta
Sūtra
शुगस्य तदनादरश्रवणात्तदाद्रवणात्सूच्यते हि
śugasya tadanādaraśravaṇāttadādravaṇātsūcyate hi
Sūtra translation
Grief of him (i.e. of Jânasruti) (arose) on account of his hearing a disrespectful speech about himself; on account of the rushing on of that (grief) (Raikva called him Sûdra); for it (the grief) is pointed at (by Raikva).
(In the preceding adhikarana) the exclusiveness of the claim of men to knowledge has been refuted, and it has been declared that the gods,
Rāmānuja
Viśiṣṭādvaita Vedānta
Numbered 1.3.33 in this text
Sūtra
शुगस्य तदनादरश्रवणात्तदाद्रवणात्सूच्यते हि
śugasya tadanādaraśravaṇāttadādravaṇātsūcyate hi
Sūtra translation
(That) grief of him (arose), this is intimated by his (Jânasruti's) resorting to him (Raikva) on hearing a disrespectful speech about himself.
From what the text says about Jânasruti Pautrâyana having been taunted by a flamingo for his want of knowledge of Brahman, and having thereupon
Madhva
Dvaita Vedānta
Sūtra
शुगस्य तदनादरश्रवणात्तदा द्रवणात्सूच्यते हि
śugasya tadanādaraśravaṇāttadā dravaṇātsūcyate hi
Sūtra translation
There woe grief caused in hint-on account of hefting it (the swan) slighting him and on account of his instantan- eous going to (Raikwa), (so Poutrayana is called Sudra); for it (the grief) is indicated (by his procedure).
This Poutrayana is a not a Sudra (by birth). The state of being a sudra in his case consists in his rapidly betaking himself