Aśauca-vidhi (Rules of Impurity) within Śrāddha-kalpa — Chapter on Testing/Selecting Brahmanas and Honoring the Atithi
अक्लिष्ट मव्रणं युक्तं कृशवृत्तिमयाचकम् / एकान्तशीलं धीमन्तं सदा श्राद्धेषु भोजयेत्
akliṣṭa mavraṇaṃ yuktaṃ kṛśavṛttimayācakam / ekāntaśīlaṃ dhīmantaṃ sadā śrāddheṣu bhojayet
One who is untroubled, uninjured, disciplined, living on little, not begging, fond of solitude, and wise—such a one should always be fed at śrāddha rites.