Bhagavatapurana 4.6.34

4.6.34

sanandanādyair mahā-siddhaiḥ śāntaiḥ saṃśānta-vigraham /
upāsyamānaṃ sakhyā ca bhartrā guhyaka-rakṣasām //

34. They saw Śiva of tranquil personality waited upon by Sanaka, Sanandana and other great yogins who have obtained tranquillity, as well as by his friend the Lord of Yaksha and Rakshas races;