Mbh 7.109.2d

Addressing Sini’s grandson, that bull of his clan, (Yudhishthira said), “O grandson of Sini, the time for that eternal duty which the righteous ones of old have indicated (for friends) towards friends in seasons of distress, hath now come. O bull amongst the Sinis, reflecting within myself, I do not, O Satyaki, see amongst all my warriors one who is a greater well wisher to us than thou art. He who is always well-affected, he who is always obedient, I think, he should be appointed to a grave commission in times of distress. As Kesava is ever the refuge of the Pandavas even, so art thou, O thou of Vrishni’s race, who art like Kesava in prowess. I will, therefore, lay a burthen on thee. It behoveth thee not to frustrate my purpose. Arjuna is thy brother, friend, and preceptor, O bull among men, in this battle render him aid in time of distress. Thou art devoted to truth. Thou art a hero. Thou art the dispeller of the fears of friends. Thou art celebrated in the world, in consequence of thy acts, O hero, as one that is truthful in speech. He, O grandson of Sini, who casteth away his body while fighting in battle for friends, is equal to him who giveth away to Brahmanas the whole earth. We have heard of various kings gone to heaven, having given away the whole of this earth unto Brahmanas with due rites. O thou of virtuous soul, I beg of thee, with joined hands, even this viz., that, O lord, attain thou the fruit of giving away (unto Brahmanas) the whole earth, or something higher than that by incurring danger to thy life itself for helping Arjuna. There is one, viz., Krishna, that dispeller of the fears of friends, who is ever willing to cast away his life in battle (for the sake of friends). Thou, O Satyaki, art the second. None but a hero can render aid unto a hero, exerting valorously in battle, from desire of fame. An ordinary person cannot do so. In this matter, here is none else but thee who can protect Arjuna.