Aśauca-vidhi (Rules of Impurity) within Śrāddha-kalpa — Chapter on Testing/Selecting Brahmanas and Honoring the Atithi
तस्माद्दद्यात्सदा दान्तः समभ्यार्च्यातिथिं नरः / व्यञ्जनानि तु वक्ष्यामि फलं तेषां तथैव च
tasmāddadyātsadā dāntaḥ samabhyārcyātithiṃ naraḥ / vyañjanāni tu vakṣyāmi phalaṃ teṣāṃ tathaiva ca
Therefore, a self-restrained man should always give in charity and duly worship the guest. Now I shall speak of the dishes, and likewise of their fruits.