तद्यद्भक्तं प्रथममागच्छेत्तद्धोमीयं स यां प्रथमामाहुतिं जुहुयात्तां जुहुयात्प्राणाय स्वाहेति प्राणस्तृप्यति ॥ ५.१९.१ ॥
In plain words
Now the food that comes first is to be offered. The first offering that he makes, let him make with the words "To the out-breath, svāhā." Then the out-breath is satisfied.