Śaiśirīya Śikṣā 105

105

rākṣeti prathamo jñeyaḥ khnā ityaparo bhavet
yamāstatra nivartante śmaśānādiva bāndhavāḥ

The first should be known as 'rākṣa', the other would be 'khnā'; / the yamas retreat there, like kinsmen from a cremation ground.