Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/9/28

तस्याः कराद्विनिर्मुक्ता रात्रौ सा बिल्वमंजरी ।। पपात कस्यचिद्दिष्ट्या शिवलिंगस्य मस्तके ।। २८ ।।

sanskrit

That bunch of Bilva leaves cast off from her hands during the night, fortunately fell on the top of a Śiva’s phallic image.

english translation

tasyAH karAdvinirmuktA rAtrau sA bilvamaMjarI || papAta kasyaciddiSTyA zivaliMgasya mastake || 28 ||

hk transliteration by Sanscript