al-Sa'ib bin Malik السائب بن مالك · The Book of al-Bay'ah

"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, that we would not contend with the orders of whomever was entrusted with it, that we would stand for justice wherever we may be, and that we would not fear the blame of any blamer for the sake of Allah.