In uttering the resolution about the observance of fasts and in making offerings to the celestials, the use of a vessel of copper is preferable. In presenting the offerings to the celestials in (giving and accepting) alms, in presenting the ingredients of the Argha, and in offering oblations of water mixed with sesame seeds to the departed Manes, a vessel of copper should be used. By doing these acts in any other way, one acquires little merit. These mysteries have been laid down about how the deities are pleased.
उपवासे बलौ चापि ताम्रपात्रं विशिष्यते। बलिर्भिक्षा तथाऱ्या च पितॄणां च तिलोदकम्॥ ताम्रपात्रेण दातव्यमन्यथाऽहल्पफलं भवेत्। गुह्यमेतत् समुद्दिष्टं यथा तुष्यन्ति देवताः॥