offer my condolence
Tonight is the most sorrowful night for Muslims, because the man of justice and humanity,the commander of faithful, the father of eloquence, the caretaker of the orphans, the shelter of the needy and the perfect of all humans after Holy Prophet Muhammad (saw). Born in the House of Allah, Holy Kaaba, and martryed in the House of Allah, Masjid-e-Kufa. He died on the 21st day of Ramadan 40 A.H. and buried in Najaf al-Ashraf (Iraq).
On the 19th of the month of Holy Ramadan (Mah e Ramzan) of the year 40 A.H, Imam Ali (pbuh) came to the mosque in Kufa for his morning prayers. Imam Ali (pbuh) gave the call for prayer (Azaan) and became engaged in leading the congregation. Abd-al-Rahman ibn Muljam pretending to pray, stood just behind Imam Ali (pbuh), and when Imam Ali (pbuh) was in a state of prostration, Abd-al-Rahman ibn Muljam dealt a heavy stroke with his sword, inflicting a deep wound on Imam Ali's (pbuh) head,This was the time when Imam Ali (as) uttered his famous words : "Fuzto warab-il-Kaaba" - "By the Rab of Kaaba, I am successful".
Imam Ali (pbuh) suffered from his wound for three days, and He (pbuh) passed away on 21st of the month of Ramadan (Mah e Ramzan) at an age of 63 year