The Messenger of Allah (PBUH) said, "A man's Salat in congregation is twenty-five times more rewarding than his Salat at home or in his shop, and that is because when he performs his Wudu' properly and proceeds towards the mosque with the purpose of performing Salat in congregation, he does not take a step without being raised a degree (in rank) for it and having a sin remitted for it, till he enters the mosque. When he is performing Salat, the angels continue to invoke Blessings of Allah on him as long as he is in his place of worship in a state of Wudu'. They say: 'O Allah! Have mercy on him! O Allah! Forgive him.' He is deemed to be engaged in Salat as long as he waits for it."

[Al-Bukhari and Muslim].

“It is not lawful to shed the blood of a Muslim who bears witness that none has the right to be worshiped but Allah (SWT), and that I am the Messenger of Allah (SAW), except in one of three cases: a soul for a soul; a married person who commits adultery, and one who leaves his religion and splits from the Jama`ah.”

The Messenger of Allah ﷺ stood before us as I am standing before you, and said: `I urge you to show respect to my Companions, then those who come after them, then those who come after them, then lying will become so widespread that a man will start to give testimony before he is asked to do so.Whoever among you wants to attain a spacious abode in Paradise, let him adhere to the jama'ah (main body of Muslims), for the Shaitan is with the one who is alone, but he is further away from two. And no one of you should be alone with a woman for the Shaitan will be the third one present. The one who is pleased with his good deeds and upset by his bad deeds is a believer.`

Umar addressed the people in al­-Jabiyah, and said: The Messenger of Allah ﷺ stood as I am standing and said: `Treat my Companions kindly, then those who come after them, then those who come after them. Then there will come people who will swear oaths before being asked to swear and will give testimony before being asked to give testimony. Whoever among you would like to attain the best place in Paradise, let him adhere to the jama'ah (the main body of Muslims), for the Shaitan is with one and he is further away from two. No man should be alone with a woman because the Shaitan will be the third one present. Whoever feels pleased when he does a good deed and feels bad when he does an evil deed is a believer.”

The Jews would not sit with a menstruating woman in a house, nor eat with her, nor drink with her. That was mentioned to the Messenger of Allah, then Allah revealed the words: "They ask you concerning menstruation. Say: that is a harmful thing, therefore keep away from women during menses." The Messenger of Allah said: "Do everything except sexual intercourse."