Valmiki Ramayana Ayodhya Kanda Sarga 102 Shloka 1

राघवः one born in the race of the Raghus (Rama), भरतेन by Bharata, उक्ताम् uttered, पितुः father's, मरणसंहिताम् union with death, करुणाम् pitiable, तां those, वाचम् words, श्रुत्वा on hearing, गत चेतनः unconscious, बभूव became.

Having heard the words of Bharata regarding the death of his father, Rama became unconscious. Rama, Sita and Lakshmana's grief over king Dasaratha's death -- Rama and Lakshmana offer libations of water in Mandakini river