From Hindupedia, the Hindu Encyclopedia
By Swami Harshananda
Sāndīpani was a well-known ṛṣi who was running a gurukula in Avantī, a sacred city of ancient India. He was the teacher of Kṛṣṇa and Balarāma. At the end of their training, he requested them to get back his dead son who had been drowned in the sea. They killed the demon Pañcajana who had abducted him and visited god Yama in whose world they found the boy.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore