न विवादे न कलहे न सेनायां न सङ्गरे । न भुक्तमात्रे नाजीर्णे न वमित्वा न शुक्तके ॥ १२१ ॥
Nor during a verbal altercation, nor during a mutual assault, nor in a camp, nor during a battle, nor when he has just eaten, nor during an indigestion, nor after vomiting, nor with sour eructations,
अतिथिं चाननुज्ञाप्य मारुते वाति वा भृशम् । रुधिरे च स्रुते गात्रात्शस्त्रेण च परिक्षते ॥ १२२ ॥
Nor without receiving permission from a guest (who stays in his house), nor while the wind blows vehemently, nor while blood flows from his body, nor when he is wounded by a weapon.
Let him never recite the Rig-veda or the Yagur-veda while the Saman (melodies) are heard; (let him stop all Veda-study for a day and a night) after finishing a Veda or after reciting an Aranyaka.
The Rig-veda is declared to be sacred to the gods, the Yagur-veda sacred to men, and the Sama-veda sacred to the manes; hence the sound of the latter is impure (as it were).