Shiva Purana
जन्मतो द्वादशे वर्षे तद्वचो नारदेरितम् ॥ सत्यं करिष्यन्निव तमभ्यगात्कुलिशायुधः ॥ ३५ ॥
In the twelfth year of his life, the thunderbolt, armed Indra approached him as if fulfilling the utterance of Nārada.
english translation
janmato dvAdaze varSe tadvaco nAraderitam ॥ satyaM kariSyanniva tamabhyagAtkulizAyudhaH ॥ 35 ॥
hk transliteration by Sanscript