Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 18
Sanskrit:
सेहे रुजं सुदुर्मर्षां सत्त्वमालम्ब्य मातलि: ।इन्द्रो जम्भस्य सङ्क्रुद्धो वज्रेणापाहरच्छिर: ॥ १८ ॥
ITRANS:
sehe rujaṁ sudurmarṣāṁsattvam ālambya mātaliḥindro jambhasya saṅkruddhovajreṇāpāharac chiraḥ
Translation:
Although the pain was extremely severe, Mātali tolerated it with great patience. Indra, however, became extremely angry at Jambhāsura. He struck Jambhāsura with his thunderbolt and thus severed his head from his body.