The most important mention of Imam Hussein in the land of Karbala was the awakening of the sleeping conscience. During these days, he constantly used to go to the enemy,s armies and guided them to the truth with a kind and loving speech. This vital statement continued until the last moments of his holy life. When all the companions of Imam Hussein were martyred, he addressed the enemies and said: “the doors of repentance are still wide open for you, ask for forgiveness from Allah Almighty by repenting and avoid killing me” then he made the following historical statement:
“Is there anyone who can help me?"
source : erfan.ir