Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 43
Sanskrit:
सप्तैते गोवृषा वीर दुर्दान्ता दुरवग्रहा: ।एतैर्भग्ना: सुबहवो भिन्नगात्रा नृपात्मजा: ॥ ४३ ॥
ITRANS:
saptaite go-vṛṣā vīradurdāntā duravagrahāḥetair bhagnāḥ su-bahavobhinna-gātrā nṛpātmajāḥ
Translation:
These seven wild bulls are impossible to tame, O hero. They have defeated many princes, breaking their limbs.