Sahih Bukhari Volume 008, Book 076, Hadith Number 491.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 76. To Make the Heart Tender (Ar-Riqaq)
Narated By 'Abdullah bin 'Amr : The Prophet said, "A Muslim is the one who avoids harming Muslims with his tongue or his hands. And a Muhajir (an emigrant) is the one who gives up (abandons) all what Allah has forbidden."