Canto 2 -
Ayodhyā-kāṇḍa
Chapter 62: Kausalyā Pacifies Daśaratha
Text 2.62.20

एवं हि कथयन्त्यास्तु कौसल्यायाः शुभं वचः।
मन्दरश्मिरभूत्सूर्यो रजनी चाभ्यवर्तत॥

evaṁ hi kathayantyās tu kausalyāyāḥ śubhaṁ vacaḥ
manda-raśmir abhūt sūryo rajanī cābhyavartata

evam hi = such; kathayantyāḥ tu = spoke; kausalyāyāḥ = when Kausalyā; śubham = auspicious; vacaḥ = words; manda-raśmiḥ abhūt = rays became mild; sūryaḥ = the sun’s; rajanī = night; ca = and; abhyavartata = began.

When Kausalyā spoke such auspicious words, the sun’s rays became mild and night began.

Śubhaṁ vacaḥ. Because Kausalyā appeased her husband even in an extremely distressed condition, her words have been described as “auspicious words.”