Sayyiduna Ibn Umar (may Allah be pleased with them) reports that the Messenger of Allah (peace and blessings be upon him) said: "Whoever is pleased by his good deed and saddened by his bad deed, then he is a believer."

It is narrated from Sayyiduna Abu Umamah Bahili, may Allah be pleased with him, that indeed a man asked the Prophet, peace and blessings be upon him: "What is sin?" He, peace and blessings be upon him, replied: "That which troubles your heart, so leave it." He asked: "What is faith?" He, peace and blessings be upon him, replied: "Whoever is pleased by his good deed and saddened by his bad deed, then he is a believer."

Sayyiduna Abu Umamah (may Allah be pleased with him) narrates from the Prophet (peace and blessings be upon him) that he said: "Whoever is pleased by his good deed and saddened by his bad deed, then he is a believer."

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that Sayyiduna Umar bin Khattab (may Allah be pleased with him) delivered a sermon at the place of Jabiyah, and he said that the Messenger of Allah (peace and blessings be upon him) stood among us and he said... and he also mentioned this matter... and he narrated this hadith.

Sayyiduna Abdullah bin Zubair (may Allah be pleased with them both) narrates that Sayyiduna Umar bin Khattab (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) delivered a sermon at this very place of mine and said:“Honor my companions, then those who come after them, then those who come after them. Then falsehood will become apparent and such people will become widespread that each of them will give testimony though it will not be sought from him, and he will swear an oath though it will not be requested from him. So whoever likes the center of Paradise should adhere to the congregation, for indeed the devil is with the one who is alone and is farther from two. So no man should sit in seclusion with a woman, for the third among them is the devil. And whoever is grieved by his evil deed and pleased by his good deed, then he is a believer.”