tasya coddharatah ksaunim

 sva-damstragrena lilaya

daitya-rajasya ca brahman

 kasmad dhetor abhun mrdhah

 

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 

 

What was the reason, O brahmana, for the fight between the demon king and Lord Boar while the Lord was lifting the earth as His pastime?