[13][1] In response, Hasan sent a vanguard under Ubayd Allah ibn al-Abbas to Maskin to block Mu'awiya's advance until he arrived with the main army.
In return, Mu'awiya was ready to designate Hasan as his successor, grant him safety, and offer him a large financial settlement.
[1][32][33] Some have criticized Hasan for ceding the caliphate, while others maintain that his abdication was inevitable, given the Kufans' weak support and Mu'awiya's military superiority.
She lists several conditions in the early sources and questions their veracity, including an annual payment of one or two million dirhams to Hasan, a single payment of five million dirhams from the treasury of Kufa, annual revenues from variously-named districts in Persia, succession of Hasan to Mu'awiya or a council (shura) after Mu'awiya, and preference for the Banu Hashim over the Banu Umayyad in pensions.
[40][13] Jafri then argues that the most comprehensive account is the one given by Ahmad ibn A'tham, probably taken from al-Mada'ini (d. 843), who recorded the terms in two parts.
The first part is the conditions proposed by Abd Allah ibn Nawfal, who negotiated on Hasan's behalf with Mu'awiya in Maskin.
[45] The account of al-Zuhri depicts a greedy Hasan eager to renounce his caliphate for money and was likely distributed by the Umayyads to legitimize Mu'awiya's rule in the absence of a council (shura) or election or designation (nass), suggests Jafri.
[47] That Mu'awiya agreed to an amnesty for the supporters of Ali indicates that the revenge for Uthman was a pretext for him to seize the caliphate, according to Jafri.
[4][5][6][7][3] Throughout his reign, Mu'awiya also prosecuted notable partisans of Ali,[8] including Hujr ibn Adi, a companion of Muhammad, who was executed in 670.