Shiva Purana
एकदा तु समास्तीर्य चैलाजिनकुशोत्तरम् ॥ आसनम्परमन्तस्मिन्स्थित्वा रुद्धेन्द्रियो मुनि ॥ २७ ॥
Once he spread out a blanket of cloth, deerskin and kusha grass. O sage, standing at the end of the seat, the senses were restrained.
english translation
ekadA tu samAstIrya cailAjinakuzottaram ॥ AsanamparamantasminsthitvA ruddhendriyo muni ॥ 27 ॥
hk transliteration by Sanscript