Śrīmad-Bhāgavatam · Text 1.15.12
Who is speaking and story frame
यत्तेजसाथ भगवान् युधि शूलपाणि-
र्विस्मापित: सगिरिजोऽस्त्रमदान्निजं मे ।
अन्येऽपि चाहममुनैव कलेवरेण
प्राप्तो महेन्द्रभवने महदासनार्धम् ॥ १२ ॥
yat-tejasātha bhagavān yudhi śūla-pāṇir
vismāpitaḥ sagirijo ’stram adān nijaṁ me
anye ’pi cāham amunaiva kalevareṇa
prāpto mahendra-bhavane mahad-āsanārdham
It was by His influence only that in a fight I was able to astonish the personality of god Lord Śiva and his wife, the daughter of Mount Himālaya. Thus he [Lord Śiva] became pleased with me and awarded me his own weapon. Other demigods also delivered their respective weapons to me, and in addition I was able to reach the heavenly planets in this present body and was allowed a half-elevated seat.
Read Śrīla Prabhupāda's purport on Vedabase.io