The reins being no longer held by any body, the horses ran at their free will. It was only then that Dushasana came to know that his driver had been slain.
यदा त्वसंगृहीतत्वात् प्रयान्त्यश्वा यथासुखम्। ततो दुःशासनः सूतं बुबुधे गतचेतसम्॥