#siblingrivalry

How should I react when I have not witnessed a fight between mu children?

I wanted to ask you how I should react when I am not in the room and one of my boys (4.5 and 7) comes to me (sometimes crying, not always) saying that his brother hurt him or did something to one of his toys? It feels tricky because I didn’t see exactly what happened, but if I don’t do or say the right thing then it is bound to happen again.