William Muir

“ The short-lived Caliph retired to Medina, where, with ample means to gratify his ruling passion, he passed his time in ease and quietness, giving no further anxiety to Mu'awiya. He survived eight years, and met his death by poison at the hand of one of his wives. It was a not unnatural end for "Al-Hasan the Divorcer." 'Alid tradition, indeed, would have us to believe that the lady was bribed to commit the crime, and thus exalts the libertine to the dignity of "Martyr." But Mu'awiya had no object in ridding himself of his harmless subject ”

“ The imprecations against the memory of 'Ali, his house, and his adherents, still formed part of the public service; and so indeed, they continued to do throughout the Umeiyad Caliphate, except during the Caliphate of 'Omar. ”