We have heard that only Brahmanas and Kshatriyas should observe the vow of fasts. How, O grandfather, are the other castes to be taken as acquiring any merit by the observance of fasts?
ब्रह्मक्षत्रेण नियमाश्चर्तव्या इति नः श्रुतम्। उपवासे कथं तेषां कृत्यमस्ति पितामह॥