From Abu Hurairah (radiyallaahu 'anhu) who said that Allaah's Messenger (salallaahu 'alaihi wa'sallam) said:
Indeed Allaah is gentle and loves gentleness, and gives due to gentleness that which He does not give to harshness.
So through gentleness hearts become united in friendship and love, and good becomes widespread. Whereas through its opposite ill feelings and distrust prevails and people forsake one another. But gentleness facilitates: