Then it would have been my (painful) duty to slay Bhimasena's son Ghatotkacha. It was only for pleasing you that I did not slay him before.
मया वध्योऽभविष्यत् स भैमसेनिर्घटोत्कचः। मया न निहतः पूर्वमेष युष्पत्प्रियेप्सया॥