Hasan's Vanguard at Al-Maskin[edit]
When Ubayd Allah with the Kufan vanguard arrived al-Maskin where Muawiyah had already reached, the latter sent an envoy to tell them that he had received letters from Hasan asking for an armistice and that he asked the Kufans not to attack until he finish his negotiations with Hasan. Muawiyyah's claim was probably untrue; but he had good reason to think that he could make Hasan to give in.[8][30] The Kufans, however, insulted Muawiyah's envoy and reviled him. Next Muawiya sent the envoy to visit Ubayd Allah in private, and to swore to him that Hasan had requested Muawiyah for a truce, and that Muawiyah was offering Ubayd Allah 1,000,000 dirhams, half of which to be paid at once, the other half in Kufa, provided he went over to him. Ubayd Allah accepted and abandoned at night to Muawiyah's camp. Muawiyah was extremely pleased and fulfilled his promise to him.[11][12][30]