SB 11.27.22

pādya — of the water offered to the Lord for bathing His feet; arghya — the water offered to the Lord as a token of respectful greeting; ācamanīya — and the water offered to the Lord for washing His mouth; artham — placed there for the purpose; trīṇi — three; pātrāṇi — the vessels; deśikaḥ — the worshiper; hṛdā — by the “heart” mantra; śīrṣṇā — by the “head” mantra; atha — and; śikhayā — by the “crown” mantra; gāyatryā — and by the Gāyatrī mantra; ca — also; abhimantrayet — he should perform purification by chanting.