Srimad-Bhagavatam: Canto 7 - Chapter 11 - Verse 24
Srimad-Bhagavatam: Canto 7 - Chapter 1 - Verse 24 Sanskrit: शूद्रस्य सन्नति: शौचं सेवा स्वामिन्यमायया ।अमन्त्रयज्ञो ह्यस्तेयं सत्यं गोविप्ररक्षणम् ॥ २४ ॥ ITRANS: śūdrasya sannatiḥ śaucaṁsevā svāminy amāyayāamantra-yajño hy asteyaṁsatyaṁ go-vipra-rakṣaṇam Translation: Offering obeisances to the higher sections of society [the brāhmaṇas, kṣatriyas and vaiśyas], being always very clean, being free from duplicity, serving one’s master, performing sacrifices without uttering mantras, not stealing, always speaking the truth and giving all protection to the cows and brāhmaṇas — these are the symptoms of the śūdra....