Matsya Purana — The Chapter on Conquering Anger: Forbearance
ये कुमाराः कुमार्यश्च वैरं कुर्युरचेतसः नैतत्प्राज्ञस्तु कुर्वीत विदुस्ते न बलाबलम् //
ye kumārāḥ kumāryaśca vairaṃ kuryuracetasaḥ naitatprājñastu kurvīta viduste na balābalam //
Boys and girls, being undiscerning, may take up enmity; but a wise person should not do so—because they do not understand what is strength and what is weakness.
This verse is not about Pralaya; it is a moral instruction emphasizing prudence—avoid hostility born of immaturity and ignorance of relative power.
It advises rajadharma and gṛhastha-dharma: do not initiate feuds impulsively; first assess balābala (relative strength/weakness) and act with foresight to prevent needless conflict.
No Vastu or ritual procedure is stated here; the takeaway is strategic restraint—an attitude also valued when planning decisions that require assessing capacity and consequences.