Ka'b ibn Zuhayr

The foremost living poet of Arabia, son of Zuhayr ibn Abī Sulmā of the Seven Hanging Odes, and of the tribe of Muzaynah. He had versified against the Prophet ﷺ, lampooned his own brother for accepting Islam, and finally crossed the unforgivable line of slandering the Muslim women. After the Conquest his believing brother wrote urging him to flee or repent, since the Prophet ﷺ always accepts the penitent. Realizing his idolatry had been mere custom, Kaʿb came unrecognized to Medina, took the Prophet's ﷺ hand, and asked pardon in Kaʿb's name before revealing himself; when an Anṣārī rose to kill him, the Prophet ﷺ said, "Let him be, he has come repentant." He then recited his ode Bānat Suʿād, the original Burdah, and the Prophet ﷺ, moved, gave him his own cloak.