SB 3.14.3

tasya coddharataḥ kṣauṇīṁ
 sva-daṁṣṭrāgreṇa līlayā
daitya-rājasya ca brahman
 kasmād dhetor abhūn mṛdhaḥ
Word for word: 
tasya — His; ca — also; uddharataḥ — while lifting; kṣauṇīm — the earth planet; sva-daṁṣṭra-agreṇa — by the edge of His tusks; līlayā — in His pastimes; daitya-rājasya — of the king of demons; ca — and; brahman — O brāhmaṇa; kasmāt — from what; hetoḥ — reason; abhūt — there was; mṛdhaḥ — fight.
Translation: 
What was the reason, O brāhmaṇa, for the fight between the demon king and Lord Boar while the Lord was lifting the earth as His pastime?