In the same manner let him pour ghee on the fire, saying, 'Svâhâ to the richest.' After that let him throw all that remains together into the mash. In the same manner let him pour ghee on the fire, saying, 'Svâhâ to the firm rest.' After that let him throw all that remains together into the mash. In the same manner let him pour ghee on the fire, saying, 'Svâhâ to success.' After that let him throw all that remains together into the mash.

In plain words: He repeats the offering of ghee into the fire, saying "Svaha to the richest," then "to the firm rest," then "to success." Each time he adds the leftover ghee to the mixture.