CC Madhya-lila 24.273 - Skanda Purana
Sri Caitanya-caritamrta
CC Madhya-lila
CC Madhya 24.273, Translation and Purport:
“"O hunter, good qualities like nonviolence, which you have developed, are not very astonishing, for those engaged in the Lord"s devotional service are never inclined to give pain to others because of envy.’
This is a quotation from the Skanda Purāṇa.