Which Jewish tribe of Madinah was besieged and subsequently punished for their treachery and breach of contract with the Muslims during the Battle of Khandaq?

Explanation

During the Battle of Khandaq, Banu Qurayza, a Jewish tribe within Madinah, sided with the invading confederates, posing a significant threat to the Muslim community. After the siege, they were dealt with according to their own law.