Canto 2 -
Ayodhyā-kāṇḍa
Chapter 86: Guha Relates Rāma’s Pastimes on the Bank of Gaṅgā
Text 2.86.23

परिदेवयमानस्य तस्यैवं सुमहात्मनः।
तिष्ठतो राजपुत्रस्य शर्वरी सात्यवर्तत॥

paridevayamānasya tasyaivaṁ sumahātmanaḥ
tiṣṭhato rāja-putrasya śarvarī sātyavartata

paridevayamānasya = in lamentation; tasya = the; evam = such; sumahā-ātmanaḥ = very great soul; tiṣṭhataḥ = stood [awake]; rāja-putrasya = while Prince Lakṣmaṇa; śarvarī = the night; atyavartata = passed.

The night passed while the very great soul Prince Lakṣmaṇa stood [awake] in such lamentation.