The Holy Prophet (s.a.w.a.) said to Ali (a.s.), ‘…O Ali! Whoever kills you has indeed killed me. Whoever despises you has indeed despised me. Whoever swears at you has indeed sworn at me. This is because you are from me and just like myself. Your spirit is from my spirit. Your clay is from my clay…’
Oyoon Akhbaar al-Reza (a.s.) chap 28 trad 48