al-Husain bin Hryth الحسين بن حريث · The Book of al-Bay'ah

"From his father," and Yahya said: "From his father," from his grandfather, whom said: 'We pledged to the Messenger of Allah to hear and obey during our hardship and our ease, when we felt energetic and when we felt tired, and when others are preferred over us, that we would not contend with the orders of whomever was entrusted with it, that we would stand firm for the truth wherever it may be, and that we would not fear the…

'No prophet has eve been sent, nor has there been any Khalifah after him, but he has two groups of advisers, a group that tells him to do good and a group that tells him to do evil. Whoever is protected from the evil group, then he is indeed protected.