Śrīmad-Bhāgavatam · Text 12.2.32
Who is speaking and story frame
यदा मघाभ्यो यास्यन्ति पूर्वाषाढां महर्षय: ।
तदा नन्दात् प्रभृत्येष कलिर्वृद्धिं गमिष्यति ॥ ३२ ॥
yadā maghābhyo yāsyanti
pūrvāṣāḍhāṁ maharṣayaḥ
tadā nandāt prabhṛty eṣa
kalir vṛddhiṁ gamiṣyati
When the great sages of the Saptarṣi constellation pass from Maghā to Pūrvāsāḍhā, Kali will have his full strength, beginning from King Nanda and his dynasty.
Read this verse on Vedabase.ioThis verse has no purport; its meaning is explained by the verses around it.
From Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.