Shiva Purana

siva.sh/siva-purana/rudra-samhita/31/19

प्रत्यक्षमपि जातायां सिद्धिः कार्यस्य निश्चिता ।। तस्मात्त्वं वांछितं ब्रूहि या करिष्यामि भाविता ।। १९ ।।

sanskrit

When I have personally appeared, the realisation of your desires is certain. Hence let me know your desires. I shall certainly fulfil them.

english translation

pratyakSamapi jAtAyAM siddhiH kAryasya nizcitA || tasmAttvaM vAMchitaM brUhi yA kariSyAmi bhAvitA || 19 ||

hk transliteration by Sanscript