Agastya said How can, succeed in cursing Nahusha, O great Rishi? You know how the Boongiving (Brahman) himself has given Nahusha the best of boons.
अगस्त्य उवाच कथमेष मया शक्यः शप्तुं यस्य महामुने। वरदेन वरो दत्तो भवतो विदितश्च सः॥