“I heard Abā ʿAbdillāh say, ‘Verily we sin and we forget, then we turn back penitently to Allah.’” Al-Ḥasan ibn Saʿīd said, “There is no difference of opinion among our scholars that they (the Imams) are infallible and free of every type of ugliness [in their actions]. They (a) refer to the abandoning of what is recommended as a sin and a misdeed in relation to their own perfection [and that is why they repent].”