Matsya Purana 250.26

250.26

mandarasya guhāṃ haimīṃ muktā mālā vibhūṣitām.
sukhacchamaṇi sopānaṃ vaiḍhūryyastambha maṇḍitām .. 250.26 ..

Hearing those fearful words, the Devas and the demons placing Brahmâ and Viṣṇu in front of them repaired to the abode of Lord Śiva and stood at His gateway They were announced to the Lord by His attendant Gaṇeṣa and with His permission went inside His cave in the golden Mandarâchala the steps of which were studded with precious stones, having pillars of Vaidûrya gem. Then they knelt down and prayed to the Lord under the leadership of Brahmâ.—24-27.