Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/12/45

महेश्वर उवाच ।। हे देवा ऋषयः सर्वे मद्वचः शृणुतादरात् ।। योनिरूपेण मल्लिंगं धृतं चेत्स्यात्तदा सुखम् ।। ४५ ।।

sanskrit

Lord Śiva said:— O gods, O sages, you listen to my words with reverence. If my penis is supported in a vaginal passage there will be happiness.

english translation

mahezvara uvAca || he devA RSayaH sarve madvacaH zRNutAdarAt || yonirUpeNa malliMgaM dhRtaM cetsyAttadA sukham || 45 ||

hk transliteration by Sanscript