Valmiki Ramayana Yuddha Kanda Sarga 122 Shloka 38
Original Shlokaइतिप्रतिसमादिश्यपुत्रौसीतां च राघवः । इन्द्रलोकंविमानेनययौदशरथोज्वलन् ।।6.122.38।।
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राघवः Raghava, दशरथः Dasharatha's, ज्वलन् glowing, पुत्रौ sons, सीतां च and Sita, इति thus, प्रतिसमादिश्य admonished, विमानेन by the aerial car, इन्द्रलोकम् world of Indra, ययौ went
Having admonished the two glowing sons, and Sita, Dasaratha went by aerial car to the world of Indra.