Mahabharata 12.99.8

अतिथीनन्नपानेन पितॄंश्च स्वधया तथाऋषीन्स्वाध्यायदीक्षाभिर्देवान्यज्ञैरनुत्तमैः

atithīnannapānena pitṝṃśca svadhayā tathāṛṣīnsvādhyāyadīkṣābhirdevānyajñairanuttamaiḥ

Our plain-language meaning of this verse is waiting for scholar review.