Mahabharata 11.21.4

यं सम पाण्डवसंत्रासान्मम पुत्रा महारथा: । प्रायुध्यन्त पुरस्कृत्य मातज्रा इव यूथपम्‌

yaṁ sama-pāṇḍava-saṁtrāsān mama putrā mahārathāḥ | prāyudhyanta puraskṛtya mātangā iva yūthapam ||

Vaiśaṃpāyana said: “The very hero whom my sons—great chariot-warriors—used to place in the forefront and fight behind, as elephants rallying around their herd-leader, and by whose presence the Pāṇḍavas were struck with fear—him Savyasācī Arjuna has slain on the battlefield, as a lion fells another lion, or as a musth elephant brings down a rival lord of elephants.”