What is uprightness among the Muslims?

Ibrahim (may Allah have mercy on him) said: The upright person among the Muslims is one against whom no charge is made regarding his stomach or his private parts.

Amir (may Allah have mercy on him) said: As long as no prescribed punishment (hadd) has been applied to a Muslim man and no defect in his religion is known, it is acceptable for him to give testimony.

Al-Hasan (may Allah have mercy on him) considered the testimony of a man who prays to be valid, unless his opponent brought a defect by which his probity could be challenged.

Sayyiduna Umar (may Allah be pleased with him) asked a man about another person. He said: "We know nothing but good." Sayyiduna Umar (may Allah be pleased with him) said: "This attestation of his probity is sufficient for you."

Shurayh (may Allah have mercy on him) said: First make your claim, then add to it and elaborate on it fully, and then establish upright witnesses for it, for we have been commanded to judge with justice. And go and ask about him. If they say, 'Allah knows best,' then Allah knows best: they are afraid to say, 'He is dubious,' and the testimony of a dubious person is not accepted. And if they say, 'We know of him only that he is an upright Muslim,' then he is, if Allah wills, as they say, and his testimony is accepted.