Shiva Purana
गवां रसैश्च संस्नाप्य दर्भतोयैर्विशोध्य च ॥ प्रोक्षयेत्प्रोक्षणीतोयैर्मूलेनाष्टोत्तरं शतम् ॥ ६७ ॥
Then he bathed the cows with the juice of the cows and purified them with the water of the darbha grass. Sprinkle the 180 roots with the waters sprinkled.
english translation
gavAM rasaizca saMsnApya darbhatoyairvizodhya ca ॥ prokSayetprokSaNItoyairmUlenASTottaraM zatam ॥ 67 ॥
hk transliteration by Sanscript