The Shudra is not competent to celebrate a sacrifice. The king should, therefore, take away (wealth for such a purpose) from a Shudra's house.
आहरेदथ नो किञ्चत् कामं शूद्रस्य वेश्मनः। न हि यज्ञेषु शूद्रस्य किञ्चिदस्ति परिग्रहः॥