Anas: Rasul Allah (S.A.W.) was asked: Who are the household (Al) of Muhammad (S.A.W.)? Any righteous one. Replied the Holy Prophet (S.A.W.), and then recited the ayah: "...no men can be its [the holy Mosque's] guardians except the righteous..." (8:34).
Imam al-Sadiq (A.S.): Those who are pious and righteous are indeed of us among the Ahl al-Bayt. He was asked by the narrator: O son of Rasul Allah! Are they of you? The Holy Imam (A.S.) answered: Have you not heard the words of Allah the Almighty who says: "And he amongst you that turns to them (for friendship) is of them' (5:51), and the words of Ibrahim who said: 'So everyone who follows me is of me?!
Hasan ibn Musa al-Washsha' al-Baghdadi: In Khorasan, I was in a session with Ali ibn Musa al-Reza (A.S.) where Zayd ibn Musa (the Imam's brother) was also present and was addressing the audience with pomposity and pride, saying: We are so and so. Talking to another group of people, Imam Reza (A.S.) heard him what he said, so he turned to him and said: O Zayd! Have the words uttered by Kufan grocers deluded you , when he said: Fatima was chaste and pure, and thus Allah safeguarded her progeny from the [Hell] Fire?! I swear by Allah this is true only for al-Hasan (A.S.), al-Husayn(A.S.) and the child born from her. But if Musa ibn Jafar (A.S.) obeys Allah, fasting in day time and spending nights in worshipping, and you disobey Allah and then be treated the same as him on the Resurrection Day, in this case you will be more dearer to the Exalted Allah than him, Ali ibn al-Husayn(A.S.) used to say: For the righteous among us there will be double reward and for the wrongdoer double chastisement.
Al-Hasan al-Washsha' says: Then the Imam(A.S.) faced me and said: O Hasan how do you read the ayah: "He said: O Noah! He is not of thy family, for his conduct is unrighteous" (11:46). I said some interpret it as:" For his conduct is unrighteous", and some others mean it as: "For he is [born] of unrighteous act". So those who read it as by the latter phrasing, they deny he was Noah's son. The Imam (A.S.) said: "Never it is so. He was Noah's son, but since he disobeyed Allah, the Almighty, He denied him of his father. Similarly, any one of us [the Ahl al-Bayt] who disobeys the Exalted Allah is not of us; and if anyone obeys Allah's commands he is of us.
Characteristics of Those who are not Like the Members of Ahl al-Bayt (A.S.)
The Messenger of Allah (S.A.W.): Whoever willingly surrenders to abjectness, is not of us.
The Messenger of Allah (S.A.W.): He is not of us who does not respect our elderly and is not tender to our young children and does not recognize our eminence and superiority.
The Messenger of Allah (S.A.W.): O People! Allah has made us Ahl al-Bayt, immune from getting deceived or deceiving others, of committing intrigues, of telling lies, of rendering predictions, of witchcraft , of thwarting, of being treacherous, of fortune telling with birds, of innovation, of being doubtful, of withdrawing from people, or of being hypocrites; therefore, whoever possesses any of these traits is not of us and I am not of him, and Allah is disgusted with him and we also are disgusted with him, and whoever is disgusted by Allah, will be cast into the Hell; and Lo! What terrible place it is.
The Messenger of Allah (S.A.W.): Is not of us the one whose neighbor is not secure of his evils.
The Messenger of Allah (S.A.W.): Is not of us the one who treats us with cheating and treachery.
The Messenger of Allah (S.A.W.): Is not of us the one who treats a Muslim with fraudulence and cheating.
The Messenger of Allah (S.A.W.): Is not of us who commits dishonesty in people's deposits.
Imam al-Sadiq (A.S.): He who is not good to his neighbor is not of us.
Imam al-Sadiq (A.S.): He who does not perform supererogatory prayer is not of us.
Imam al-Sadiq (A.S.): He who lives in a city with a hundred thousand populations where there exist people more pious than him, is not of us and has no merit.
Imam al-Sadiq (A.S.): He, who abandons his world for his Hereafter or abandons his Hereafter for his world, is not of us.
Imam al-Sadiq (A.S.): He is not counted as our Shi'a who gives us lip service, and acts contrary to our conduct.
Abu Rabi al-Shami: I entered upon Imam al-Sadiq (A.S.) in a room crammed with people from Khorasan and Sham (Syria) and other parts of the world and I could not find any place to sit. His Holiness (A.S.), who was leaning back, straightened up and said: O Shi'as of Muhammad's (S.A.W.) household! Know that he is not of us who does not restrain himself when stirred to anger, and does not get along well with his companions, and is not good-tempered with those who are good-tempered with him, and does not treat his friend with good will, and is not a good neighbor for his neighbors, and does not appreciate his host's hospitality; O Shi'as of Muhammad's (S.A.W.) household! Be pious as much as you can! And there is neither power nor strength but from Allah.
Imam al-Sadiq (A.S.): The Exalted and the Almighty Allah have made love and Wilayah of us incumbent upon you and obeying us an obligation. So be aware that whoever is of us must follow u. Our traits include: piety; endeavor; returning what is entrusted to them to both the benevolent and the malevolent; regard for kinship; hospitality; and forgiving those who have done evil (to us. Whoever does not follow us is not of us.
Imam al-Kazim (A.S.): He who does not survey his actions daily to see if he has done good he asks Allah for more good deeds and if he has done evil acts he asks Allah's forgiveness and returns to Him with repentance, is not of us.
Imam al-Reza (A.S.): He is not of us and we are not of him who makes a relation with someone who has broken it off with us, or who breaks it off with someone who has a relation with us, or who adores those who reproach us, or who honors those who oppose u