The Martyrdom of Imam Hussain and His Ijtihad
Hussain (RA) was the grandson of Prophet Muhammad (PBUH). He was martyred at the Battle of Karbala in 680 CE by the army of Yazid I, the Umayyad caliph. He had left Medina for Kufa after receiving letters from the people of Kufa inviting him to be their leader and Imam. However, he was unaware that the situation in Kufa had changed and that his envoy, Muslim ibn Aqil (RA), had been killed by the governor of Kufa, Ubaydullah ibn Ziyad. He was intercepted by Yazid's army near Karbala and prevented from accessing water from the Euphrates river. He and his family and companions faced a siege and a massacre on the day of Ashura, the 10th of Muharram.
As for whether Muslims believe that Hussain (RA) made a wrong ijtihad (independent reasoning) by going to Kufa, this is a matter of difference of opinion among various sects and schools of thought. Some may argue that he made a mistake by trusting the people of Kufa or by risking his life and the lives of his family and companions. Others may argue that he acted according to his best judgment and intention, and that he was following Allah's will and standing up for justice and truth. It is not appropriate to question or criticize his decision.
Hussain (RA) chose to stand up for justice and truth against tyranny and oppression. Hussain (RA) did not intend to cause any fitnah (discord) or bloodshed, but he wanted to reform the Muslim society and leadership. He was following the example of his father Ali (RA), who fought against those who deviated from the truth and justice.
Imam Hussain (may Allah be pleased with him) did not make a mistake going to Kufa. He had a noble intention of reforming the Muslim community and responding to the invitation of the Kufans who asked for his guidance and leadership. He did not seek war or violence, but rather peace and justice. He was ready to return to Madina if the Kufans changed their mind and disliked his presence. However, he was betrayed by the Kufans who switched their allegiance to Yazid and surrounded him with a large army. He was left with no choice but to defend himself and his family against the oppression and tyranny of Yazid.
Abdullah ibn Umar was one of the people who tried to dissuade Hussain (may Allah be pleased with him) from going to Kufa. He wrote a letter to Hussain warning him about the danger of Yazid and the treachery of the Kufans. He also advised him to stay in Makkah or Madina and not to expose himself and his family to harm. However, Hussain replied that he had a dream in which the Prophet (peace and blessings of Allah be upon him) ordered him to do something, which he would not reveal until he completed it.
Abdullah ibn Umar was not the only one who resisted Hussain’s journey to Kufa. Others who tried to persuade him not to go included his brother Muhammad al-Hanafiyya, his uncle Ibn Abbas, and some of his companions like Zayd ibn Arqam and Abu Sa’id al-Khudri (may Allah be pleased with them all) They all feared for his safety and reminded him of the fickleness and unfaithfulness of the Kufans. However, Hussain (may Allah be pleased with him) was determined to follow his vision and his conscience, and he refused to pledge allegiance to Yazid, whom he considered an unjust and immoral ruler. He left Madina for Makka to preserve the sanctity and dignity of the blessed land of the Prophet (PBUH). He faced the enemy troops with courage and conviction. He reminded them of his lineage and his virtues.
He left a legacy of inspiration and martyrdom for generations to come. His sacrifice became a symbol of resistance against injustice and oppression. His story motivated many Muslims to strive for the cause of Allah and defend their faith. His martyrdom also fulfilled a prophecy of the Prophet (PBUH) that he would be one of the leaders of the youth in Paradise.
مِّنَ ٱلۡمُؤۡمِنِینَ رِجَالࣱ صَدَقُوا۟ مَا عَـٰهَدُوا۟ ٱللَّهَ عَلَیۡهِۖ فَمِنۡهُم مَّن قَضَىٰ نَحۡبَهُۥ وَمِنۡهُم مَّن یَنتَظِرُۖ وَمَا بَدَّلُوا۟ تَبۡدِیلࣰاAmong the Muslims are the men who have proved true what they had covenanted with Allah; so among them is one who has already fulfilled his vow, and among them is one still waiting; and they have not changed a bit.