Shiva Purana
सर्वगंधमयं वाथ लिंगं कुर्याद्यथारुचि ॥ व्रतावसानसमये समाचरितनित्यकः ॥ ७८ ॥
Or one may make a linga with all kinds of fragrances according to one’s taste. At the end of the vow he performed the daily rituals.
english translation
sarvagaMdhamayaM vAtha liMgaM kuryAdyathAruci ॥ vratAvasAnasamaye samAcaritanityakaH ॥ 78 ॥
hk transliteration by Sanscript