sa ahato visva-jita hy avajñaya

 paribhramad-gatra udasta-locanah

visirna-bahv-anghri-siroruho ’patad

 yatha nagendro lulito nabhasvata

 

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

 

Though struck indifferently by the Lord, the conqueror of all, the demon’s body began to wheel. His eyeballs bulged out of their sockets. His arms and legs broken and the hair on his head scattered, he fell down dead, like a gigantic tree uprooted by the wind.

 

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

 

It does not take even a moment for the Lord to kill any powerful demon, including Hiranyaksa. The Lord could have killed him long before, but He allowed the demon to display the full extent of his magical feats. One may know that by magical feats, by scientific advancement of knowledge or by material power one cannot become the equal of the Supreme Personality of Godhead. His one signal is sufficient to destroy all our attempts. His inconceivable power, as displayed here, is so strong that the demon, despite all his demoniac maneuvers, was killed by the Lord when the Lord desired, simply by one slap.