dvā suparṇā sayujā sakhāyā samānaṃ vṛkṣam pari ṣasvajāte | tayor anyaḥ pippalaṃ svādv atty anaśnann anyo abhi cākaśīti ||
— Rig Veda 1.164.20

Two birds, inseparable friends, cling to the same tree. One devours the sweet fruit. The other, eating nothing, simply watches.
— Rig Veda 1.164.20