Some ahadeeth from Muhammad

It is narrated on the authority of Anas that the Prophet (may peace blessings be upon him) observed: By Him in whose Hand is my life, no, bondsman (truly) believes till he likes for his neighbour, or he (the Holy Prophet) said: for his brother, whatever he likes for himself. (Muslim and Bukhari)

Abu Huraira reported: The Messenger of Allah (may peace and blessing be upon him) observed: You shall not enter Paradise so long as you do not affirm belief (in all those things which are the articles of faith) and you will not believe as long as you do not love one another. Should I not direct you to a thing which, if you do, will foster love amongst you: (i. e.) give currency to (the practice of paying salutation to one another by saying) as-salamu alaikum. (Sahih Muslim)

Abu Dharr reported: I walked with the Messenger of Allah (may peace be upon him) on the stony ground of Medina in the afternoon and we were looking at Uhud. The Messenger of Allah (way peace by upon him) said: Abu Dharr! I said: Messenger of Allah, I am here at thy beck and call. He said: What I desire is that Uhud be gold with me and three nights should pass and there is left with me any dinar but one coin which I would keep to pay debt. (I love) to spend it among the servants of Allah like this and he pointed in front of him, and on his right side and on his left side. We then proceeded on and he said: Abu Dharr. I said: At thy beck and call, Messenger of Allah. He (the Holy Prophet) said: The rich would be poor on the Day of Resurrection, but he who spent like this and like this and like this, and he pointed as at the first time. We again went on when he said. Abu Dharr, stay where you are till I come back to you. He (the Holy Prophet) then moved on till he disappeared from my sight He (Abu Dharr) said: I heard a sound and I heard a noise. I said (to myself): The Messenger of Allah (may peace be upon him) might have met (mishap or an enemy). I wished to follow him but I remembered his command for not departing till he would come back. So I waited for him, and when he came I made a mention of what I heard. He said: it was Gabriel, who came to me and said:" He who dies among your Ummah without associating Anything with Allah would enter Paradise. I said: Even if he committed fornication or theft? He said: Even if he committed fornication or theft (Sahih Muslim)

Anas b. Malik reported Allah's Messenger (may peace be upon him) as saying: Neither nurse mutual hatred, nor jealousy, nor enmity, and become as fellow. brothers and servants of Allah. It is not lawful fora Muslim that he should keep his relations estranged with his brother beyond three days (Sahih Muslim)
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: Avoid suspicion, for suspicion is the gravest lie in talk and do not be inquisitive about one another and do not spy upon one another and do not feel envy with the other, and nurse no malice, and nurse no aversion and hostility against one another. And be fellow-brothers and servants of Allah (Sahih Muslim)
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: Don't nurse grudge and don't bid him out for raising the price and don't nurse aversion or enmity and don't enter into a transaction when the others have entered into that transaction and be as fellow-brothers and servants of Allah. A Muslim is the brother of a Muslim. He neither oppresses him nor humiliates him nor looks down upon him. The piety is here, (and while saying so) he pointed towards his chest thrice. It is a serious evil for a Muslim that he should look down upon his brother Muslim. All things of a Muslim are inviolable for his brother in faith: his blood, his wealth and his honour (Sahih Muslim)

'A'isha reported Allah's Messenger (may peace be upon him) as saying: Gabriel impressed upon me (kind treatment) towards the neighbour (so much) that I thought as if he would confer upon him the (right) of inheritance (Sahih Muslim).
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: Food for two persons suffices three persons and food for three persons suffices four persons (Sahih Muslim).