The brāhmaṇas said: Dear Lord, You are sacrifice personified. You are the offering of clarified butter, You are the fire, You are the chanting of Vedic hymns by which the sacrifice is conducted, You are the fuel, You are the flame, You are the kuśa grass, and You are the sacrificial pots. You are the priests who perform the yajña, You are the demigods headed by Indra, and You are the sacrificial animal. Everything that is sacrificed is You or Your energy.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
ब्राह्मणा ऊचुः । त्वं क्रतुस्त्वं हविस्त्वं हुताशः स्वयं त्वं हि मन्त्रः समिद्दर्भ पात्राणि च । त्वं सदस्यर्त्विजो दम्पती देवता अग्निहोत्रं स्वधा सोम आज्यं पशुः
brāhmaṇā ūcuḥ | tvaṃ kratustvaṃ havistvaṃ hutāśaḥ svayaṃ tvaṃ hi mantraḥ samiddarbha pātrāṇi ca | tvaṃ sadasyartvijo dampatī devatā agnihotraṃ svadhā soma ājyaṃ paśuḥ
SB 4.7.45