Valmiki Ramayana Kishkindha Kanda Sarga 43 Shloka 24
Original Shlokaतत्र वैश्रवणो राजा सर्वभूतनमस्कृतः। धनदो रमते श्रीमान्गुह्यकैस्सह यक्षराट्।।4.43.24।।
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तत्र there, वैश्रवणः Vaisravana, राजा king, सर्वभूतनमस्कृतः worshipped by all beings, यक्षराट् Yaksha king, श्रीमान् prosperous, धनदः Kubera, गुह्यकैः सह along with Guhyakas, रमते enjoying.
'Kubera, son of Vaisravana, a prosperous king of the yakshas (demigods) worshipped by all beings dwells there with Guhyakas.