Valmiki Ramayana 2.16.18

2.16.18

ahaṃ hi vacanād rājñaḥ pateyam api pāvake
bhakṣayeyaṃ viṣaṃ tīkṣṇaṃ majjeyam api cārṇave
niyukto guruṇā pitrā nṛpeṇa ca hitena ca

He heard, and with a troubled breast
This answer to the queen addressed:
'Ah me, dear lady, canst thou deem
That words like these thy lips beseem?
I, at the bidding of my sire,
Would cast my body to the fire,
A deadly draught of poison drink,
Or in the waves of ocean sink:
If he command, it shall be done,--
My father and my king in one.
Then speak and let me know the thing
So longed for by my lord the king.
It shall be done: let this suffice;
Ráma ne'er makes a promise twice.'