sva-damstrayoddhrtya mahim nimagnam
sa utthitah samruruce rasayah
tatrapi daityam gadayapatantam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Lord Boar very easily took the earth on His tusks and got it out of the water. Thus He appeared very splendid. Then, His anger glowing like the Sudarsana wheel, He immediately killed the demon [Hiranyaksa], although he tried to fight with the Lord.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
According to Srila Jiva Gosvami, the Vedic literatures describe the incarnation of Lord Varaha (Boar) in two different devastations, namely the Caksusa devastation and the Svayambhuva devastation. This particular appearance of the boar incarnation actually took place in the Svayambhuva devastation, when all planets other than the higher ones — Jana, Mahar and Satya — merged in the water of devastation. This particular incarnation of the boar was seen by the inhabitants of the planets mentioned above. Srila Visvanatha Cakravarti suggests that the sage Maitreya amalgamated both the boar incarnations in different devastations and summarized them in his description to Vidura.