He did not perform any dreadful deed for destroying Vishvamitra. Like the great ocean which does not cross its shore, he did not transgress the law of Yama by bringing back his sons from the land of the dead. It is by obtaining this self controlled and illustrious (Rishi), the kings,
पुत्रव्यसनसंतप्तः शक्तिमानप्यशक्तवत्। विश्वामित्रविनाशाय न चक्रे कर्म दारुणम्॥ मृतांश्च पुनराहर्तं शक्त पुत्रान् यमक्षयात्। कृतान्तं नातिचक्राम वेलामिव महोदधिः॥