Hospitality towards all, and the pursuit of the threefold objects are the duties of the householder. The duties of the Shudra consist in the pursuit of the three fold objects.
सर्वातिथ्यं त्रिवर्गस्य यथाशक्ति निशानिशम्। शूद्रधर्मः समाख्यातस्त्रिवर्गपरिचारणम्॥