That man who having fasted twelve days, eats a little clarified butter on the thirteenth, and acts thus for a whose year, succeeds in acquiring the merits of the divine sacrifice.
त्रयोदशे तु दिवसे प्राप्ते यः प्राशते हविः। सदा द्वादशमासान् वै देवसत्रफलं लभेत्॥