The greatest messenger of Allah to mankind passed away at the age of 63, after preaching for 23 years the message of peace, harmony, healthy way of life and submission to none but God the Almighty creator.
The honorable prophet of Islam left behind the "Thaqalayn" (the holy Qur'an and his pure progeny) for the guidance of the Muslims and the whole world.
Prophet Mohammad's (PBUH) elder grandson and 2ndinfallible heir, Imam Hassan al-Mujtaba (PBUH), was martyred at the age of 47, as a result of a fatal dose of poison, given on the orders of the corrupt rulers of the times.
Imam Hassan was hailed along with his younger brother, Imam Hossein (peace be upon them), as "Leaders of the youth of paradise".
Imam Khomeini, the late founder of the Islamic Republic, used to urge all believers and faithful people to adopt as a role-model the conduct of honorable prophet of Islam Hadrat Mohammad (peace be upon him) and his pure progeny.
Imam Khomeini underscored the role of Imam Hassan (PBUH) for the cause of Islam and efforts which were made by him for the unity of masses at that time.
Imam Khomeini said in following historic messages as following:
Imam Hassan rose up against the king of his day, Muawiyah, as far as he was able, even though at that time most people had sworn allegiance to Muawiyah and recognized him as their king. And when he was betrayed by a group of self-seeking, opportunistic followers and left without support, the very conditions of the peace treaty that he signed with Muawiyah disgraced that monarch, just as later, the bloody revolt of the Doyen of the Martyrs [Imam Hussain] disgraced Yazid. (Sahifeh, vol2, Page: 386-387)
Imam Hassan (may God's peace be upon him) did not have as many problems with others as he had with his devoted friends. The companions who did not have any sense of understanding as to what plans the Imam of their time is following, they, with their narrow-mindedness and defective thoughts, resisted against him and plundered him and inconvenienced and, let me add that they defeated him. They concluded a treaty with his enemies and played a thousand other tricks upon him. (Sahifeh, vol. 9, Page: 30)