Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "Whoever sees an evil should stop it with his hand; if he lacks the strength to stop it with his hand, then he should forbid it with his tongue; and if he lacks the strength to forbid it even with his tongue, then he should reject it with his heart, and that is the weakest degree of faith."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14548
Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Whoever believes in Allah and the Last Day should not sit at a table on which wine is passed around; whoever believes in Allah and the Last Day should enter the bathhouse only wearing a waist-wrapper; and the woman who believes in Allah and the Last Day should not enter the bathhouse."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14549
Salim narrates from his father (Sayyiduna Abdullah bin Umar, may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) forbade two kinds of eating: "Sitting and eating at a table on which wine is passed around, and he forbade eating while lying on one's stomach."
Our scholars said: If he accepted the invitation without knowing, he may sit, but he should not assist the people in the sin nor attend to their amusements, and then he should leave.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14550
Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: "When a sin is committed on earth, the one present who disliked it is like one who was not there, but the one who was absent and yet approves of that sin is like one who was present."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14551
Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: "When evil becomes widespread among people, whoever approves of it even in his absence is like one present, and whoever dislikes that evil in his presence is like one absent."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14552
Sayyiduna Abu Hurayrah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "Whoever dislikes an evil taking place in his presence is as though he were absent from it, and whoever was not present at the time of the evil but approved of it is as though he were present."
Only Yahya bin Abi Sulayman narrated it, and he is not strong.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14553