This question is regarding Qata Ta'alluqi. Please check the question below:

Assalamu alaikum, I had a fight with my father, left the house and moved to different location, then my father also moved to a different location. I want to patch up with him but he does not want to keep any relation with me. It has been many years now, I do not know his address and he is not receiving my phone calls, so there is no way left for me to contact him. So, if anyone of us dies in this state, the sin of Qata Ta'alluqi is on me or him?