praśasya ślakṣṇayā vācā
Ṣaṇḍa and Amarka, the priests of the demons, were eager to know from Prahlāda Mahārāja who the Vaiṣṇavas were that came to instruct him in Kṛṣṇa consciousness. Their purpose was to discover the names of these Vaiṣṇavas. In the beginning they did not threaten the boy because when threatened he might not identify the real culprits. Therefore they very mildly and peacefully inquired as follows.