Valmiki Ramayana Ayodhya Kanda Sarga 46 Shloka 33
Original Shlokaतौ सम्प्रयुक्तं तु रथं समास्थितौ तदा ससीतौ रघुवंशवर्धनौ। प्रचोदयामास ततस्तुरङ्गमान् स सारथिर्येन पथा तपोवनम्।।2.46.33।।
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तदा then, स सीतौ with Sita, रघुवंशवर्धनौ perpetuating the race of Raghu, Rama and Lakshmana, सम्प्रयुक्तम् wellyoked, रथम् chariot, समास्थितौ were seated, ततः then, सः सारथिः the charioteer, येन पथा that way, तपोवनम् penancegroves, तुरङ्गमान् horses, प्रचोदयामास urged.
When Rama and Lakshmana, perpetuaters of the Raghu race along with Sita were seated on the wellyoked chariot, Sumantra urged the horses to move.