Sometimes animal sacrifices are recommended, but in the sacrifice of Hare Krsna, Hare Krsna, there is no question of violence. It is the simplest and the purest. BG 1972 purports

Expressions researched:
"Sometimes animal sacrifices are recommended, but in the sacrifice of Hare Kṛṣṇa, Hare Kṛṣṇa, there is no question of violence. It is the simplest and the purest"

Bhagavad-gita As it is

BG Chapters 7 - 12

Sometimes animal sacrifices are recommended, but in the sacrifice of Hare Kṛṣṇa, Hare Kṛṣṇa, there is no question of violence. It is the simplest and the purest. Whatever is sublime in the worlds is a representation of Kṛṣṇa. Therefore the Himalayas, the greatest mountains in the world, also represent Him.

BG 10.25 (1972), Translation and Purport

Of the great sages I am Bhṛgu; of vibrations I am the transcendental om. Of sacrifices I am the chanting of the holy names [japa], and of immovable things I am the Himalayas.

Brahmā, the first living creature within the universe, created several sons for the propagation of various kinds of species. The most powerful of his sons is Bhṛgu, who is also the greatest sage. Of all the transcendental vibrations, the "om" (omkara) represents the Supreme. Of all the sacrifices, the chanting of Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare is the purest representation of Kṛṣṇa. Sometimes animal sacrifices are recommended, but in the sacrifice of Hare Kṛṣṇa, Hare Kṛṣṇa, there is no question of violence. It is the simplest and the purest. Whatever is sublime in the worlds is a representation of Kṛṣṇa. Therefore the Himalayas, the greatest mountains in the world, also represent Him. The mountain named Meru was mentioned in a previous verse, but Meru is sometimes movable, whereas the Himalayas are never movable. Thus the Himalayas are greater than Meru.