Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) narrates: On the day of the Confederates (al-Ahzab), the Prophet (peace and blessings be upon him) said, when the enemy had gathered many armies against him, the Prophet (peace and blessings be upon him) said: "After this they will never attack you; rather, you will attack them."
Al-Bazzar recorded it, and its narrators are thiqat (trustworthy).