Valmiki Ramayana 2.18.34

2.18.34

saṃśrutya ca pitur vākyaṃ mātur vā brāhmaṇasya vā
na kartavyaṃ vṛthā vīra dharmam āśritya tiṣṭhatā

Thus to his mother wild with grief:
Then thus to Lakshman spake the chief
Of those by whom the bow is bent,
Mid all who speak, most eloquent:
'I know what love for me thou hast,
What firm devotion unsurpassed:
Thy valour and thy worth I know,
And glory that appals the foe.
Blest youth, my mother's woe is great.
It bends her 'neath its matchless weight:
No claims will she, with blinded eyes,
Of truth and patience recognize,
For duty is supreme in place,
And truth is duty's noblest base.
Obedient to my sire's behest
I serve the cause of duty best.
For man should truly do whate'er
To mother, Bráhman, sire, he sware:
He must in duty's path remain,
Nor let his word be pledged in vain.
And, O my brother, how can I
Obedience to this charge deny?
Kaikeyí's tongue my purpose spurred,
But 'twas my sire who gave the word.
Cast these unholy thoughts aside
Which smack of war and Warriors' pride;
To duty's call, not wrath attend,
And tread the path which I commend,'