Sunan an-Nasa'i 4151

It was narrated that 'Ubadah said:"We pledged to the Messenger of Allah to hear and obey both in times of hardship and 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 speak the truth or stand firm in the way of truth wherever we may be, and that we would not fear the blame of the blamers