After the heroic Karna has been killed in battle, your sons, filled with fear by the Pandavas desirous of victory, did not obtain peace anywhere else than on the Himavat.
रणे कर्णे हते वीरे त्रासिता जितकाशिभिः। नालभशर्म ते पुत्रा हिमवन्तमृते गिरिम्॥