Sayyiduna Bashir bin Yazid al-Dub'i (may Allah be pleased with him), who had also lived in the days of Ignorance (Jahiliyyah), narrates: On the day of the Battle of Dhu Qar, the Prophet (peace and blessings be upon him) said: "This is the first day on which the Arabs have obtained redress from the non-Arabs."
Al-Tabarani recorded it. Its chain contains a narrator, Sulayman bin Dawud al-Shadhakuni, who is da'if (weak).