Pitṛgaṇa-Vibhāga (Classification of the Pitṛs) and the Śrāddha–Soma Nourishment Cycle
सर्वेषां राजतैः पात्रैरपि वा रजतान्वितैः / दत्तं स्वधां पुरोधाय श्राद्धं प्रीणाति वै पितॄन्
sarveṣāṃ rājataiḥ pātrairapi vā rajatānvitaiḥ / dattaṃ svadhāṃ purodhāya śrāddhaṃ prīṇāti vai pitṝn
For all, a Śrāddha offered in silver vessels, or vessels adorned with silver, with the utterance ‘svadhā’ placed foremost, truly delights the Pitṛs.