Valmiki Ramayana Ayodhya Kanda Sarga 83 Shloka 3
Original Shlokaनवनागसहस्राणि कल्पितानि यथाविधि। अन्वयुर्भरतं यान्तमिक्ष्वाकुकुलनन्दनम्।।2.83.3।।
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यथाविधि as per tradition, कल्पितानि arranged, नवनागसहस्राणि nine thousand elephants, यान्तम् while going, इक्ष्वाकुकुलनन्दनम् the delight of the house of Ikshvakus, भरतम् Bharata, अन्वयुः followed.
As per tradition, nine thousand elephants were arranged to follow Bharata, delight of the race of the Ikshvakus as he set out.