Then al-Hasan went with a great army and good equipment till...
Then al-Hasan went with a great army and good equipment till he stopped at Dir 'Abd al-Rahman. He stayed there for three (days) till the people gathered. Then he summoned 'Ubayd Allah b. al-'Abbas b. 'Abd al-Muttalib, and said to him: 'Cousin, I am going to send with you twelve thousand (men) from the horsemen of the Arabs and (the Qur'an readers) of the city.'" Al-Tabari (vol. 6, p. 94.) reported on the authority of al-Zuhri, who said: "When Mu'awiya got rid of 'Ubayd Allah b.
'Abbas and al Hasan, peace be on him, he came to plot against a man who was the most important of the people in plotting against him (Mu'awiya). There were forty thousand (fighters) with him. Mu'awiya, 'Amru, and the Syrians met them." In his book (Sharh Nahj al-Balagha, vol. 4, p. 6), b. Abu al Hadid has mentioned the following on the authority of al-Mada'ini [1] on the authority of al-Musayyab b. Nujayya, who said to al-Hasan [1] He was Abu al-Hasan b. Muhammad b. Abu Sayf al-Basri.
He lived in al-Mada'in, then moved to Baghdad, and died there in the year 215 A.H. Ibn Abu al-Hadid reported many traditions on his authority. He, may Allah have mercy on him, has about two hundred books on various matters. when he blamed him for his Peace Treaty with Mu'awiya 'My astonishment at you does not end. You have made peace with Mu'awiya, (while) you have forty thousand (fighters).
Or he (al Musayyab) said: 'You have pledged allegiance to (Mu'awiya)', due to different reporters." In his book (al-Kamil fi al-Ta'rikh, vol. 3, p. 61), Ibn al-Athir said: "Forty thousand fighters pledged allegiance to the Commander of the faithful ('Ali). They were ready to die for him when he told them about something concerning Sham (Syria) and they appeared. While he was getting ready to advance towards (Syria), he was killed. If Allah wills a thing, no one is able to repulse it (the thing).
When he was killed, the people pledged allegiance to his son, al-Hasan. He (al Hasan) heard of the advance of Mu'awiya and the Syrians towards him. So he (al-Hasan) and the army that had pledged allegiance to 'Ali got ready and left Kufa to meet Mu'awiya, who had stopped at Maskan. So al-Hasan arrived in al-Mada'in. There he appointed Qays b. 'Abbada al-Ansari over his vanguard with twelve thousand (fighters). It was said that al-Hasan appointed 'Abd Allah [1] b.
'Abbas over his (al-Hasan's) vanguard. So he (al-Hasan) appointed 'Abd Allah b. 'Abbas over his vanguard in the advance guards of Qays b. Sa'd b.