O king, the Pandavas did only their duty in rescuing you. Those that reside in the dominions of the king should always do what is agreeable to the king.
कर्तव्यं हि कृतं राजन् पाण्डवैस्तव मोक्षणम्। नित्यमेव प्रियं कार्यं राज्ञो विषयवासिभिः॥