CC Madhya 6.226
na kāla-niyamas tathā
prāptam annaṁ drutaṁ śiṣṭair
bhoktavyaṁ harir abravīt
“ ‘The prasādam of Lord Kṛṣṇa is to be eaten by gentlemen as soon as it is received; there should be no hesitation. There are no regulative principles concerning time and place. This is the order of the Supreme Personality of Godhead.’ ”
These verses are quoted from the Padma Purāṇa.