Shiva Purana
युवां चोभौ मिलित्वा च राजभोगं सुविस्तरम् ॥ भुक्त्वा मुक्तिं च योगीन्द्रेर्लप्स्येथे दुर्लभां ध्रुवम् ॥ ३१ ॥
After coming together you will enjoy royal pleasures. You will attain salvation too, inaccessible even to leading Yogins.
english translation
yuvAM cobhau militvA ca rAjabhogaM suvistaram ॥ bhuktvA muktiM ca yogIndrerlapsyethe durlabhAM dhruvam ॥ 31 ॥
hk transliteration by Sanscript