The Uprising of al-Sufyanī (Arabic: خُرُوج السُّفيَاني) is one of the five inevitable events that happens before the Reappearance of Imam al-Mahdi (a). The uprising happens in Syria. According to a hadith from Imam al-Rida (a), the Reappearance of al-Qa'im (a) will not happen without the uprising of al-Sufyani. According to other hadiths, after nine months of rule in Syria, al-Sufyani and his army advance towards Medina and will be devoured by the Earth in a place called "Bayda'".
In Shiite and Sunni hadiths, al-Sufyani is said to be from the progeny of Abu Sufyan and is characterized as a bloodshedder and cruel and people are frightened by seeing him. Different names are mentioned for him, such as Anbasa b. Marra.
Different names have been mentioned for al-Sufyani in Shiite and Sunni sources of hadiths. For example, in different hadiths from Imam Ali (a), his name is variously mentioned as Anbasa b. Marra, Harb b. Anbasa, and Uthman b. Anbasa, and it is said that he is from the progeny of Abu Sufyan. In Sunni sources, his name is variously mentioned as Harb b. Anbasa and Mu'awiya b. Utba.
According to hadiths, al-Sufyani is a bloodshedder, homicidal, and brutal. Moreover, according to hadiths from Imam Ali (a), al-Sufyani is a broad-shouldered, his face is full of acne, and has one eye, and people are frightened upon seeing him. According to a hadith transmitted from Imam al-Sadiq (a) in Bihar al-anwar, al-Sufyani is an enemy of the Shi'as, and his crier in Kufa announces that anyone who beheads a Shi'a will be given one thousand dirhams.
According to hadiths from Imam al-Sadiq (a), the uprising of al-Sufyani is characterized as inevitable, and is referred to as one of the five signs of the Reappearance of the al-Qa'im along with the Riot of al-Yamani, the Heavenly Cry, the Murder of the Pure Soul, and Khasf al-Bayda'.
There is also a hadith from Imam al-Rida (a) according to which the Reappearance of the al-Qa'im is inevitable, and the uprising of al-Sufyani is likewise inevitable, and without the al-Sufyani's uprising, al-Qa'im is not going to reappear. According to a hadith from Imam al-Sadiq (a), the uprising of al-Sufyani is inevitable and is going to occur in the Rajab month. There is a hadith from Imam al-Baqir (a) implying that the uprisings of al-Sufyani, Sayyid al-Yamani, and Sayyid al-Khurasani are going to occur in the same year, same month, and the same day.
According to hadiths from the Prophet (s), one sign of the Reappearance of al-Mahdi (a) is the uprising of an army from Syria who will be devoured by the Earth in an area called "Bayda'". This came to be known in sources of hadiths as "al-Khasf al-Bayda'".
According to another hadith, Imam Ali (a) points to the Qur'an 34:51,  suggesting that al-Sufyani will rule Syria for nine months and then when he leads his army towards Medina, God takes him inside the Earth in Bayda'.