Ahavat Yisrael

Ahavat Yisrael (Hebrew: אהבת ישראל) is a mitzvah in Judaism to have "Love of one's fellow Jew". A biblical idea, the concept of Ahavat Yisrael has been elaborated upon by the Chabad movement. The source of the concept of Avahat Yisrael comes from Vayikra 19:18 (Leviticus 19:18).