“Two men fought with each other. Aharon went and sat with one of them and said to him: My son, see what your friend said? His heart is distraught and he tears his clothes and says – ‘Woe is me! How can I lift my eyes and see my friend? I am so ashamed that it was I who hurt him!’ This is how he sat with him until all jealousy was removed from his heart.

And Aharon goes and sits with the other and says to him: My son, see what your friend said? His heart is distraught and he tears his clothes and says – ‘Woe is me! How can I lift my eyes and see my friend? I am so ashamed that it was I who hurt him!’ This is how he sat with him until all jealousy was removed from his heart.

And when they met each other, they hugged and kissed each other.” (Avot D’Rabbi Nathan)