“I warn you against giving lying speech (forged statement) and a false witness; I warn you against giving a lying speech and a false witness.” The Prophet (peace be upon him) kept on saying that warning till we (the companions) thought he would not stop.
“You will not enter Paradise until you believe and you will not believe until you love each other. Shall I show you something that, if you did, you would love each other? Pay salutation to one another.”
“When a group of people assemble for the remembrance of Allah, the angels surround them , Allah’s mercy envelops them, tranquillity descends upon them and Allah makes a mention of them before those who are near Him.”
– Messenger Muhammad, peace and blessings be upon him.