Mahabharata Sabha Parva(Lokapala Sabhakhayana Parva)
Mahabharata Sabha Parva Chapter 10:2
And Chakradhaman, the chief of the Vidyadharas, with his followers, waiteth in that mansion upon the lord of treasures. And Kinnaras by hundreds and innumerable kings with Bhagadatta as their chief, and Druma, the chief of the Kimpurushas, and Mahendra, the chief of the Rakshasas, and Gandhamadana accompanied by many Yakshas and Gandharvas and many Rakshasas wait upon the lord of treasures. The virtuous Vibhishana also worshippeth there his elder brother the lord Kuvera (Croesus). The mountains of Himavat, Paripatra, Vindhya, Kailasa, Mandara, Malaya, Durdura, Mahendra, Gandhamadana, Indrakila, Sunava, and Eastern and the Western hills—these and many other mountains, in their personified forms, with Meru standing before all, wait upon and worship the illustrious lord of treasures. The illustrious Nandiswaras, and Mahakala, and many spirits with arrowy ears and sharp-pointed mouths, Kaksha, Kuthimukha, Danti, and Vijaya of great ascetic merit, and the mighty white bull of Siva roaring deep, all wait in that mansion. Besides these many other Rakshasas and Pisachas (devils) worship Kuvera in that assembly house. The son of Pulastya (Kuvera) formerly used always to worship in all the modes and sit, with permission obtained, beside the god of gods, Siva, the creator of the three worlds, that supreme Deity surrounded by his attendants. One day the exalted Bhava (Siva) made friendship with Kuvera. From that time, O king, Mahadeva always sitteth on the mansion of his friend, the lord of treasures. Those best of all jewels, those princes of all gems in the three worlds, viz., Sankha and Padma, in their personified forms, accompanied by all the jewels of the earth (also in their personified forms) worship Kuvera."
"This delightful assembly house of Kuvera that I have seen, attached to the firmament and capable of moving along it, is such, O king. Listen now to the Sabha I describe unto thee, belonging to Brahma the Grandsire."