Shiva Purana

siva.sh/siva-purana/saturda-samhita/15/39

इन्द्र उवाच ।। न मत्तश्शङ्करस्त्वन्यो देवदेवोऽस्म्यहं शिशो ।। विहाय बालिशत्वं त्वं वरं याचस्व मा चिरम् ।। ३९।।

sanskrit

Indra said:— O child, Śiva is not separate from me. I am the lord of gods. Give up your foolhardiness and ask for a boon from me. Do not delay.

english translation

indra uvAca || na mattazzaGkarastvanyo devadevo'smyahaM zizo || vihAya bAlizatvaM tvaM varaM yAcasva mA ciram || 39||

hk transliteration by Sanscript