Ruling on transplanting a kaafir heart into a Muslim
Question

3mth old son just recevied a heart transplant because his old heart was not developed properly. My question is: He has a non-muslim heart beating inside of him, is it ok? Or did we make a wrong decision to have had the transplant?
Praise be to Allah.We put the following question to Shaykh ‘Abd-Allaah ibn Jibreen:
Is there any objection (in sharee’ah) to transplanting the heart of a dead kaafir into a Muslim body?
He, may Allaah preserve him, answered as follows:
No, because this organ is not the seat of disbelief or faith.