The Rāmāyaṇa of Vālmīki 2.46.78

2.46.78

gataṃ tu gaṅgāparapāram āśu rāmaṃ sumantraḥ pratataṃ nirīkṣya
adhvaprakarṣād vinivṛttadṛṣṭir mumoca bāṣpaṃ vyathitas tapasvī

The hero ceased: and Lakshman led
Obedient to the words he said:
And Sítá followed him, and then
Came Raghu's pride, the lord of men.
With Sítá walking o'er the sand
They sought the forest, bow in hand,
But still their lingering glances threw
Where yet Sumantra stood in view.
Sumantra, when his watchful eye
The royal youths no more could spy,
Turned from the spot whereon he stood
Homeward with Guha from the wood.