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In the Uttarapurana of the Mahapurana:
The Vītaghṛṇa (compassionless) Parvata, filled with joy, informed his father that "I have done exactly as you instructed." (309)
Nārada also went to the forest, thinking that he should cut off the ears in a place unseen. But the guru had said "the cutting off of the duty", and here there is no unseen place, as the deities like the moon, sun, stars, and planets are always present, and the birds and animals are always nearby. (310-311)
Realizing that there is no place in the forest that is unseen by anyone, the noble-souled Nārada returned to the guru and said that due to the injunctions regarding name, meaning, intention, and action, he has brought this goat. (312-313)
Hearing this, the father contemplated the foolishness of his son and said that the view of the Ekāntavādins, who believe that an effect is solely determined by the cause, is mistaken. Sometimes the effect is in accordance with the cause, and sometimes it is otherwise. The truth is what the Syādvāda says. (314-316)
The wise teacher then placed Nārada in the position of an upādhyāya, saying that he, being subtle-minded and knowing the truth, is fit for this role. He honored Nārada and encouraged him with virtues. (317-318)
The father then spoke to his son, saying that without discrimination, he has done this improper act. Despite studying the scriptures, he lacks the discrimination between right and wrong action. How will he survive when I am no longer present? (319-320)
Thus, the father, though saddened, instructed the foolish Parvata. But the latter, being of dull intellect, became hostile towards Nārada, as is the way of the unintelligent. (321)