The Great Epic of the Bhārata dynasty 13.93.1

13.93.1

yudhiṣṭhira uvāca |
dvijātayo vratopetā haviste yadi bhuñjate |
annaṃ brāhmaṇakāmāya kathametatpitāmaha || 1 ||

"Yudhishthira said, 'If Brahmanas that are in the observance of a vow (viz., fast) eat, at the invitation of a Brahmana, the Havi (offered at a Sraddha), can they be charged with the transgression or a violation of their vow, or should they refuse the invitation of a Brahmana when such invitation is received by them? Tell me this, O grandsire!'