Shiva Purana
कुम्भमेकं च संस्थाप्य कृत्वाष्टदलमुत्तमम् ॥ दूर्वायवांकुरैस्तीर्थोदकमापूरयेत्ततः ॥ ३४॥
Make an eight-petalled mystic diagram of lotus and place a pot over it. Water from holy centres shall be poured into the pot along with the sprouts of Dūrvā and barley.
english translation
kumbhamekaM ca saMsthApya kRtvASTadalamuttamam ॥ dUrvAyavAMkuraistIrthodakamApUrayettataH ॥ 34॥
hk transliteration by Sanscript