Valmiki Ramayana Kishkindha Kanda Sarga 43 Shloka 22
Original Shlokaतत्र पाण्डुरमेघाभं जाम्बूनदपरिष्कृतम्। कुबेरभवनं रम्यं निर्मितं विश्वकर्मणा।।4.43.22।।
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तत्र there, विश्वकर्मणा by Visvakarma, निर्मितम् built, पाण्डुरमेघाभम् like pale white cloud, जाम्बूनदपरिष्कृतम् embellished with gold, रम्यम् exquisite, कुबेरभवनम् mansion of Kubera.
'There is an exquisite mansion of Kubera built by Visvakarma which, embellished with gold, looks like a pale white cloud.