Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 18
Sanskrit:
तं तु सङ्कर्षणो मूर्ध्नि पतन्तमचलो यथा ।प्रतिजग्राह बलवान् सुनन्देनाहनच्च तम् ॥ १८ ॥
ITRANS:
taṁ tu saṅkarṣaṇo mūrdhnipatantam acalo yathāpratijagrāha balavānsunandenāhanac ca tam
Translation:
But Lord Saṅkarṣaṇa remained as motionless as a mountain and simply grabbed the log as it fell upon His head. He then struck Dvivida with His club, named Sunanda.