Vasudeva foresaw the calamities in Vraja by studying Kamsa's political activities & thus warned Nanda Maharaja to take precautions, although Nanda Maharaja thought that Vasudeva had predicted this incident (killing Putana) through wonderful mystic powers

Expressions researched:
"he foresaw the calamities in Vraja by studying Kaṁsa's political activities and thus warned Nanda Mahārāja to take precautions, although Nanda Mahārāja thought that Vasudeva had predicted this incident through wonderful mystic powers"

Srimad-Bhagavatam

SB Canto 10.1 to 10.13

Vasudeva actually had all mystic powers under his control; otherwise he could not have become the father of Kṛṣṇa. But in fact he foresaw the calamities in Vraja by studying Kaṁsa's political activities and thus warned Nanda Mahārāja to take precautions, although Nanda Mahārāja thought that Vasudeva had predicted this incident through wonderful mystic powers. By mystic powers gained through the practice of haṭha-yoga, one can study and understand the future.

SB 10.6.32, Translation and Purport

Nanda Mahārāja and the other gopas exclaimed: My dear friends, you must know that Ānakadundubhi, Vasudeva, has become a great saint or a master of mystic power. Otherwise how could he have foreseen this calamity and predicted it to us?

This verse illustrates the difference between kṣatriyas and innocent vaiśyas. By studying the political situation, Vasudeva could see what would happen, whereas Nanda Mahārāja, the king of the agriculturalists, could only guess that Vasudeva was a great saintly person and had developed mystic powers. Vasudeva actually had all mystic powers under his control; otherwise he could not have become the father of Kṛṣṇa. But in fact he foresaw the calamities in Vraja by studying Kaṁsa's political activities and thus warned Nanda Mahārāja to take precautions, although Nanda Mahārāja thought that Vasudeva had predicted this incident through wonderful mystic powers. By mystic powers gained through the practice of haṭha-yoga, one can study and understand the future.