Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 42

Sanskrit:

तुष्टोऽहं भो द्विजश्रेष्ठा: सत्या: सन्तु मनोरथा: ।छन्दांस्ययातयामानि भवन्‍त्‍विह परत्र च ॥ ४२ ॥

ITRANS:

tuṣṭo ’haṁ bho dvija-śreṣṭhāḥsatyāḥ santu manorathāḥchandāṁsy ayāta-yāmānibhavantv iha paratra ca

Translation:

You boys are first-class brāhmaṇas, and I am satisfied with you. May all your desires be fulfilled, and may the Vedic mantras you have learned never lose their meaning for you, in this world or the next.

Purport:

Cooked food left sitting for three hours is called yāta-yāma, indicating that it has lost its taste, and similarly if a devotee does not remain fixed in Kṛṣṇa consciousness, the transcendental knowledge that once inspired him on the spiritual path will lose its “taste,” or meaning, for him. Thus Sāndīpani Muni blesses his disciples that the Vedic mantras, which reveal the Absolute Truth, will never lose their meaning for them but will remain ever fresh in their minds.