What Bhishma, the son of Shantanu and the great car-warrior Drona have told you, namely that Krishna and Arjuna are invincible is true indeed.
यथा भीष्मः शान्तनवो द्रोणश्चापि महारथः। आहतुस्तात तत् सत्यमजेयौ कृष्णपाण्डवौ॥