Śatapatha Brāhmaṇa ("of a hundred paths") 5.3.5.13

5.3.5.13

naiyagrodhapādam bhavati | tena mitryo rājanyo 'bhiṣiñcati padbhirvai nyagrodhaḥ pratiṣṭhito mitreṇa vai rājanyaḥ pratiṣṭhitastasmānnaiyagrodhapādena mitryo rājanyo 'bhiṣiñcati

There is one made of the foot (stem) of the nyagrodha (ficus indica): therewith a friendly (mitrya) Râganya sprinkles: for by its feet the nyagrodha tree is supported, and by the friend (mitra) the Râganya (nobleman or king) is supported: therefore a friendly Râganya sprinkles with (the water of a vessel) made of the foot of a nyagrodha.