In Sermon (59), Imam Ali (a.s.) expressed his intention to fight the Kharijites. When informed that they had crossed the Nahrawan canal, he stated that their place of downfall would be on this side of the water. His prophecy indicated that not even ten of them would escape, nor would ten of his companions perish. This reflects Imam Ali's divinely granted knowledge of the outcome of the battle.

The term 'nutfah' used in this sermon, as explained by Sayyid Razi, refers to the water of the Euphrates, which serves as a powerful metaphor for the impending defeat of the Kharijites. After their defeat, when it was reported that they had all been killed, Imam Ali clarified that they still existed in the loins of men and the wombs of women, indicating that their lineage would continue until a leader emerged among them.

He also advised against killing the Kharijites after him, stating that those who seek the truth, even if they fail to find it, are not like those who seek falsehood and attain it. This highlights the moral lesson that the pursuit of truth is noble, and even unsuccessful attempts should be respected.

Through this sermon, Imam Ali (a.s.) not only prophesied the defeat of the Kharijites but also provided insight into their future. It teaches us that the quest for truth is never in vain, and every individual should strive to follow their faith despite challenges and setbacks.