Bulugh al-Maram

"A Muslim has six duties towards other Muslims: When you meet him, you should salute him; when he invites you, accept his invitation; when he asks for your advice, give it to him; when he sneezes and praises Allah, say May Allah have mercy on you; when he is ill, visit him; and when he dies follow his funeral." Related by Muslim.

"Look at those who are lower than you (financially) but do not look at those who are higher than you, lest you belittle the favors Allah conferred upon you." Agreed upon.

An-Nawwas bin Sam'an (RAA) narrated, "I asked the Messenger of Allah (ﷺ) about virtue and sin and he replied, "The essence of virtue is (manifested in) good morals (Akhlaq) whereas sinful conduct is that which turns in your heart (making you feel uncomfortable) and you dislike that it would be disclosed to other people." Related by Muslim.

"When three of you get together in company, two of you must not talk privately while isolating the third, so as not to make him feel sad (that he is left out) till you mingle with other people (i.e. you are joined by others)." Agreed upon and the wording is from Muslim.

"A man should not ask another man to get up from his place in order to take his seat. But you should make room for each other and spread out." Agreed upon.

"When one of you eats, he must not wipe his hand till he licks it, or gives it to someone else to lick (such as a wife, husband, etc.)." Agreed upon.

"The young should salute the old, the one who is passing by should salute the one who is sitting, and the small group of people should salute the larger one." Agreed upon. In a version by Muslim, "And the one who is riding should salute the one who is walking."

"When a group of people passes by, it is sufficient if one of them gives a salutation, and it is sufficient for those who are sitting that one of them replies." Related by Ahmad and Al-Baihaqi.

"Do not initiate the saluting of Jews and Christians (when you meet them), and if you meet any of them on the road, force him to go to the narrowest part of the road (i.e. do not give way for them to pass, but keep going). Related by Muslim.