Though defeated in Nahrawan, Kharijis still hated the idea that ungodly Caliphs were ruling the Islamic Empire: Muawiyah in Syria, Amr in Egypt and Ali in Iraq.
Once in 40 A.H. three Kharijis met named Abdul Rehman bin Muljam, Bakir bin Abdullah, and Amr bin Bakr. They bitterly lamented over how Islamic Empire was in shambles and need to be set right.
They conspired to kill the 3 on the same day on 17th Ramzan. Ibn Muljam would go to Iraq, Amr after Amr, and Bakir after Muawiyah.
Ibn Muljam reached Kufa and met a beautiful woman there sympathetic to Kharijis cause. He offered to marry her, but she had a condition that it was only possible on the head of Ali. He without any reluctance agreed. She provided him with two accomplices.
On the appointed day, they hid behind the entrance of the Mosque where Ali led prayers. The leader used to enter earlier to call everyone for prayer. As soon as Ali entered the mosque, he was wounded with poisoned sword.
Ibn Muljam was seized, the second one assassinated and the third one made a good escape.
Ali was wounded heavily and was carried home where after 2 days, he breathed his last. He died on 27th January, 661.
Muljam was put to sword. Muawiyah was injured too but recovered, whereas Amr didn’t lead prayers that day and someone else was murdered in his place. Both of their assassins were put to sword too.
For complete Islamic history notes click here.