Srimad Bhagavatam — Dashama Skandha, Shloka 61
Kāliya-damana: Kṛṣṇa Subdues the Serpent and Purifies the Yamunā
य एतत् संस्मरेन्मर्त्यस्तुभ्यं मदनुशासनम् । कीर्तयन्नुभयो: सन्ध्योर्न युष्मद् भयमाप्नुयात् ॥ ६१ ॥
ya etat saṁsmaren martyas tubhyaṁ mad-anuśāsanam kīrtayann ubhayoḥ sandhyor na yuṣmad bhayam āpnuyāt
若有凡人专心忆念我对你的命令——离开弗林达文前往大海——并在日出与日落时分讲述此事，他将永不惧怕你们。
FAQs
In Canto 10, Chapter 16, Kṛṣṇa states that one who remembers and recites His instruction to Kāliya at dawn and dusk will not be overcome by fear caused by serpents.
After subduing Kāliya and ordering him to leave the Yamunā, Kṛṣṇa gives an instruction that also becomes a remembrance-practice for humans, linking His līlā and His words with protection and devotion.
Make a simple daily practice of sandhyā-time remembrance—recite this verse (or Kṛṣṇa’s order within the Kāliya episode) at dawn and dusk to cultivate steady smaraṇa and reduce fear through devotion-centered discipline.