Valmiki Ramayana Ayodhya Kanda Sarga 79 Shloka 2
Original Shlokaगतो दशरथस्स्वर्गं यो नो गुरुतरो गुरुः। रामं प्रव्राज्य वै ज्येष्ठं लक्ष्मणं च महाबलम्।।2.79.2।।
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यः who, नः for us, गुरुतरः superior, गुरुः preceptor, दशरथः Dasaratha, ज्येष्ठम् eldest son, रामम् to Rama, महाबलं च mighty, लक्ष्मणं च to Lakshmana also, प्रव्राज्य having exiled, स्वर्गम् heaven, गतः gone.
Dasaratha, who was our most revered master and preceptor, having exiled his eldest son Rama and mighty Lakshmana, ascended heaven.