Mbh 7.109.2h

O tiger among men, the wise speak of thee, saying, O Madhava, ‘There is nothing unachievable by Satyaki.’ O thou of great strength, do thou, therefore, that which I say unto thee, viz., obey the wishes of all here, of myself and of Arjuna. It behoveth thee not, O mighty-armed one, to frustrate that wish. Reckless of thy very life, career thou in battle like a hero. O grandson of Sini, the scions of Dasarha’s race never care to protect their lives in battle. Avoiding battle, or fighting from behind breast-works, or flying away from battle,--those practices of cowards and wretches are never practised by the Dasarhas. The virtuous-souled Arjuna is thy superior, O bull among the Sinis! Vasudeva is the superior of both thyself and intelligent Arjuna. Casting my eyes on these two reasons, I say unto thee these words. Do not discard my words, I am the superior of thy superiors. That which I am saying unto thee is approved as also by Arjuna. I tell thee this truly. Go then to the spot where Dhananjaya is. Attending to these words of mine, O thou of prowess incapable of being baffled, penetrate in this host of the wicked son of Dhritarashtra. Having penetrated into it duly, encounter the great car-warriors, and display, O Satwata, such feats as are worthy of thyself!”’”