Skanda Purana — Brahma Khanda, Shloka 48
सर्वाश्चाहुतयोऽप्येवं ग्रासाश्चांद्रायणेपि च । प्रागास्य उदगास्यो वा सूपविष्टः शुचौ भुवि
sarvāścāhutayo'pyevaṃ grāsāścāṃdrāyaṇepi ca | prāgāsya udagāsyo vā sūpaviṣṭaḥ śucau bhuvi
同様に、すべての供物（アーフティ）も、チャンドラーヤナの行における一口一口も、清浄な地に正しく坐し、東向きまたは北向きにして行うべきである。
Anonymous Purāṇic narrator (Dharmāraṇya instructional passage; speaker not explicit in the excerpt)
Scene: A votary seated on purified ground performs homa; beside him a small lunar calendar motif indicates Cāndrāyaṇa mouthful-count discipline; he faces east/north.
FAQs
Ritual acts and vows gain clarity and merit when performed with bodily discipline, purity, and correct orientation.
No specific tīrtha is named; the verse gives general ritual protocol.
For āhuti and for eating the regulated grāsas of Cāndrāyaṇa, sit properly on clean ground facing east or north.