What is the obligation of a son whose father has died, having previously given false testimony in a certain case?

Question:
This questioner says to me: My father passed away a long time ago. He had previously gone to al-Madinah al-Munawwarah for a visit with a driver. This driver fell, meaning he collided with another car whose owner we do not know. The driver complained to the center, and when the officer at the center asked, my father testified with the wronged driver. It may have been out of chivalry or ignorance. After a while, the driver came to me and told me that my father is at the gate of Paradise, and nothing is holding him back except his testimony against me. He mentioned to him that his testimony against me was the cause of his deprivation and his entry into Paradise. What should he do, and what is obligatory for him?

Answer:
Your father has died. He is the one who died, the witness who testified. Since you are his son, you must go to the one who was wronged, the one against whom he testified unjustly, and ask him for forgiveness. Ask him to release your father and forgive him. This is what suffices you.