If a person dies and the hospital has removed parts of the body, the deceased should still be buried promptly, as the Sunnah emphasises hastening burial. If the removed limbs are later returned, they should also be buried. Delaying burial for this reason is not correct.
May Allah ﷻ be good to you, one of the brothers had passed away and the hospital had taken parts of his body, is it that he should be buried without these limbs that the hospital had taken or should he be buried after these limbs are returned to the body?
That which is apparent to me and Allahﷻ knows best, is that he should be buried due to it being from the Sunnah that the burial of the deceased is hastened, if it happens to be that these body parts are later returned, then they are likewise to be buried. An example of this is when the son of Adam has parts of his limbs cut off, he is also buried along with his limbs. It is not correct that the burial of the deceased is delayed.