Mbh 6.93.1b

From regard, however, for a Kshatriya’s duty[444] as also his own pride, the king, though defeated, stood firm like a hill. Filled with wrath and aiming a sharp arrow that resembled the Yuga fire in energy, he sped it at that fierce wanderer of the night. Beholding that arrow, blazing as Indra’s bolt, thus coursing towards him, the high-souled Ghatotkacha baffled it by the celerity of his movements. With eyes red in wrath, he once more shouted fiercely, frightening all thy troops, like the clouds that appear at the end of the Yuga. Hearing those fierce roars of the terrible Rakshasa, Bhishma the son of Santanu, approaching the preceptor, said these words, ‘These fierce roars that are heard, uttered by Rakshasas, without doubt indicate that Hidimva’s son is battling with king Duryodhana. That Rakshasa is incapable of being vanquished in battle by any creature. Therefore, blessed be ye, go thither and protect the king. The blessed Duryodhana hath been attacked by the high-souled Rakshasa. Therefore, ye chastisers of foes, even this is our highest duty.[445]’ Hearing those words of the grandsire, those mighty car-warriors without loss of time and with the utmost speed, proceeded to the spot when the king of the Kurus was. They met Duryodhana and Somadatta and Valhika and Jayadratha; and Kripa and Bhurisravas and Salya, and the two princes of Avanti along with Vrihadvala, and Aswatthaman and Vikarna, and Chitrasena and Vivinsati. And many thousands of other car-warriors, including all those that followed them, proceeded, desirous of rescuing thy son Duryodhana who had been hotly pressed. Beholding that invincible division protected by those mighty car-warriors, coming towards him with hostile intentions, that best of Rakshasas, viz., the mighty-armed Ghatotkacha, stood firm like the Mainaka mountain, with a huge bow in hand, and surrounded by his kinsmen armed with clubs and mallets and diverse other kinds of weapons.