yam—whom (Paraśurāma); āhuḥ—all the learned scholars say; vāsudeva-aṁśam—an incarnation of Vāsudeva, the Supreme Personality of Godhead; haihayānām—of the Haihayas; kula-antakam—the annihilator of the dynasty; triḥ-sapta-kṛtvaḥ—twenty-one times; yaḥ—who (Paraśurāma); imām—this; cakre—made; niḥkṣatriyām—devoid of kṣatriyas; mahīm—the earth.