Ka'ab Bin Maalik narrates "I remember my meeting with the holy prophet five days before his death. I heard Allah's messenger saying " Every prophet has some friend (Khalil) from the ummah and my Khalil is Abu Bakr bin Abi Qahafah and Allah made His prophet Muhammad His friend. Listen! the people befor you made the graves of their prophets a place to worship and I forbid you from this."
Then he (Peace BE Upon Him) said "O' Allah have I delivered?" and repeated it three times.
Then he (Peace be upon him) said "O' Allah be the witness" Then he fainted for sometime. Then he said "Fear Allah in case of your servants, give them full meal, clothes to wear and talk to them politely" (Reference: Chapter Targheeb-o-tarheeb Book: Tibrani)


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Narrates Ayesha R.A.
"Allah's apostle said "If a pious and well-mannered Muslim commits a mistake, forget him except Hudood"
Reference: Abu Daud

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Long, long afterward, in an oak
I found the arrow, still unbroke;
And the song, from beginning to end,
I found again in the heart of a friend