Valmiki Ramayana 2.21.7

2.21.7

tathā nigaditaṃ mātrā tad vākyaṃ puruṣarṣabhaḥ
śrutvā rāmo 'bravīd vākyaṃ mātaraṃ bhṛśaduḥkhitām

Ráma, the noblest lord of men,
Heard his fond mother's speech, and then
In soothing words like these replied
To the sad queen who wept and sighed:
'Nay, by Kaikeyí's art beguiled,
When I am banished to the wild,
If thou, my mother, also fly,
The aged king will surely die.
When wedded dames their lords forsake,
Long for the crime their souls shall ache.
Thou must not e'en in thought within
Thy bosom frame so dire a sin.
Long as Kakutstha's son, who reigns
Lord of the earth, in life remains,
Thou must with love his will obey:
This duty claims, supreme for aye.
Yes, mother, thou and I must be
Submissive to my sire's decree,
King, husband, sire is he confessed,
The lord of all, the worthiest.
I in the wilds my days will spend
Till twice seven years have reached an end,
Then with great joy will come again,
And faithful to thy hests remain.'