To make the Heart Tender (Ar-Riqaq)
Bukhari :: Book 8 :: Volume 76 :: Hadith 491
Narrated '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."