Repentance from the wrongs of backbiting and talebearing

Question:
We return at the beginning of this session to a message received by the program from one of our female listeners. She says: Ta, Waw, Mīm. Our sister, we presented some issues to her in a previous episode, and in this session she says: If I have backbitten someone, what must I do? And when I commit a sin and seek Allah's forgiveness, repent to Him, cease, and feel remorse, how do I know that Allah has forgiven me that sin? May Allah reward you with good.

Answer:
If you have committed a wrong against someone through backbiting, talebearing, or other forms of harming others by word or deed, then you must repent to Allah and seek His forgiveness. Then you must return the wrong to its owner if it was money or a right, or seek his pardon if it was regarding his honor, unless you fear a greater fitnah (trial, discord or temptation) and greater harm. In that case, it is sufficient, along with repentance, to praise that person in the gatherings where you wronged him by praising him and speaking well of him. Likewise, by making many du'a' (supplication) for him, so that it may compensate for the harm you caused him.
As for knowing whether Allah the Exalted has forgiven you, this is known only by Allah. But you must exert the means, which is seeking forgiveness, repentance, returning the wrongs to their owners, and having good opinion of Allah the Exalted. For Allah, Mighty and Majestic, has promised repentance and forgiveness to whoever repents to Him and seeks His forgiveness, and He, the Exalted, does not break His promise. So have good opinion of Allah, Mighty and Majestic. Yes.