Salam Alaikum wrwb! More than a year back my sister saw dream in which I met with an accident and one of my hands was severed. At that time my younger brother got married to a girl with out the knowledge of our family. As this girl does not belong to a good family, she was not accepted in our family. I interpreted this dream of my sister as losing my borther. But few months later I got separated from my wife and despite several attempts it now down to Khula. Kindly let me know the meaning of this dream. Jazakallahu Khair
The meaning you understood is right, there is no need for any other interpretation.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband