Shiva Purana
सर्वासनोपरि सुखं विचित्रास्तरणास्तृतम् ॥ आसनं कल्पयेद्दिव्यं शुद्धविद्यासमुज्ज्वलम् ॥ ३० ॥
Above the seats shall be conceived the divine seat refulgent with the pure learning or knowledge, very comfortable and covered over by a covering sheet of colours.
english translation
sarvAsanopari sukhaM vicitrAstaraNAstRtam ॥ AsanaM kalpayeddivyaM zuddhavidyAsamujjvalam ॥ 30 ॥
hk transliteration by Sanscript