Valmiki Ramayana Bala Kanda Sarga 1 Shloka 17
Original Shlokaस च सर्वगुणोपेत: कौसल्यानन्दवर्धन: । समुद्र इव गाम्भीर्ये धैर्येण हिमवानिव ।।1.1.17।।
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कौसल्यानन्दवर्धन: he, who is enhancing the joys of Kausalya, स: च he also, सर्वगुणोपेत: endowed with all virtues, गाम्भीर्ये in depth of his thoughts, समुद्र: इव like a sea, धैर्येण in fortitude, हिमवान् इव like Himavat mountain.
Sri Rama, bestowed with all virtues, enhanced the joys of Kausalya, He is like the sea in deportment and like Himavant in fortitude.