Sāmba: One of the great heroes of the Yadu dynasty and the son of Lord Śrī Kṛṣṇa by His wife Jāmbavatī. He learned the military art of throwing arrows from Arjuna, and he became a member of parliament during the time of Mahārāja Yudhiṣṭhira. He was present during the Rājasūya-yajña of Mahārāja Yudhiṣṭhira. When all the Vṛṣṇis were assembled during the time of Prabhāsa-yajña, his glorious activities were narrated by Sātyaki before Lord Baladeva. He was also present along with his father, Lord Śrī Kṛṣṇa, during the Aśvamedha-yajña performed by Yudhiṣṭhira. He was presented before some ṛṣis falsely dressed as a pregnant woman by his brothers, and in fun he asked the ṛṣis what he was going to deliver. The ṛṣis replied that he would deliver a lump of iron, which would be the cause of fratricidal war in the family of Yadu. The next day, in the morning, Sāmba delivered a large lump of iron, which was entrusted with Ugrasena for necessary action. Actually later on there was the foretold fratricidal war, and Sāmba died in that war.
So all these sons of Lord Kṛṣṇa left their respective palaces and leaving aside all engagements, including lying down, sitting and dining, hastened toward their exalted father.