Shiva Purana
तस्य स्तुत्या च तपसा सन्तुष्टः शंकर प्रभुः॥ वरम्ब्रूहीति चोवाच द्रोणन्तं भक्तवत्सलः॥ ९॥
Satisfied and pleased with his eulogy and penance, lord Śiva, favourably disposed towards his devotees told Droṇa—“Mention the boon you wish to choose”.
english translation
tasya stutyA ca tapasA santuSTaH zaMkara prabhuH॥ varambrUhIti covAca droNantaM bhaktavatsalaH॥ 9॥
hk transliteration by Sanscript