Mantra 3

अथ यद्धसति यज्जक्षति यन्मैथुनं चरति स्तुतशस्त्रैरेव तदेति ॥ ३.१७.३ ॥

In plain words

And when he laughs, when he eats, when he couples — then he joins in the chants and recitations.