He was poisoned and asked Yazid to marry his wife, but he refused. Al-Hasan had previously instructed that he be buried near the Messenger of God, peace be upon him. When he died, they wanted to do that, and Marwan bin Al-Hakam was the governor of Medina. Mu'awiyah was displeased with this, and a dispute almost arose between the Umayyads and the people of Medina because of it. Aisha, may God be pleased with her, said: "The house of the Prophet, peace be upon him, is not permitted to be buried in it." So he was buried in Al-Baqi'. Mu'awiyah did not hear of Al-Hasan's death until some poets said: "Today, Hind is a sheep, and the pride of kinship has died. Al-Hasan has died. There has been much in the world, and Hind's desire is to drink the cup of death. You will not find him, so do not rejoice in him. Every living soul is destined for calamities."

The Umayyad State. The Caliphate of Mu'awiyah bin Abi Sufyan in the year 41 AH. Thus began the era of the Rightly Guided Caliphs and the beginning of the era of the Umayyad Caliphs. Mu'awiyah bin Abi Sufyan became Caliph. The capital of the Rightly Guided Caliphs was Medina, but Mu'awiyah made it hereditary and made Damascus its capital. His descendants were confined to it. He began appointing governors to the provinces. Amr bin Al-Aas was appointed governor of Egypt because of his high ambition, good policy, and his making it a source of sustenance after its sustenance and understanding its interests. Amr then appointed Shurayk bin Sumay to conquer the Berbers in North Africa. He defeated them and made peace with them, but they broke their pact. So he sent Uqbah bin Nafi' to them, and he defeated them. He also appointed Uqbah to conquer Hawara and appointed Shurayk to conquer Lebda. They conquered it in the year 45 AH. When it was the year 45 AH, Amr was severely ill and tossing on his deathbed. He died on the night of Eid al-Fitr of the mentioned year. He was short in stature and dyed his beard black. He was one of the most intelligent, resolute, and eloquent men of his time. He used to stammer in his speech. When Mu'awiyah heard of Amr's death, he was greatly saddened because he no longer had anyone to appoint as governor. He hesitated in appointing someone from his family. So he sent his brother, Uthbah bin Abi Sufyan, to Egypt in Dhu al-Qi'dah of the year 45 AH. He traveled there and after staying for months, he decided to go to Damascus. He appointed Abdullah bin Qais bin Al-Harith as his successor in Egypt. He was harsh and oppressive, and the Egyptians were displeased with him and refused to obey him. When Uthbah heard of this, he was forced to return to Egypt. When he came to Egypt, he ascended the pulpit and said: "O people of Egypt, you have been excusing yourselves by some of my actions towards some of the people. I have appointed someone who is not like me."