Charity done on behalf of the deceased?
The matters of The Unseen are matters only known through revelation. This means that if Allah doesn’t tell us something, then we can’t conclude something about The Unseen.
Whether or not the dead know who donates which good deeds for them falls into this category. I am not personally aware of any verse or hadith that conclusively states that they will enjoy their lives in Paradise.
That said, this is not a point of creed that we have to hold. We do however know that the Prophet is shown our deeds, and specifically, our prayers for him.
This would be the same for when, how, and where the dead benefit from the good deeds that are donated from them.
In general, Allah is most generous of all, so we shouldn’t worry too much about being let down when we hope for His generosity!
https://seekers.flywheelstaging.com/answers/general-counsel/donating-reward-to-the-dead-a-detailed-answer/
[Shaykh] Farid
Checked and Approved by Shaykh Faraz Rabbani
Ustadh Farid Dingle has completed extensive years of study in the sciences of the Arabic language and the various Islamic Sciences. During his studies, he also earned a CIFE Certificate in Islamic Finance. Over the years he has developed a masterful ability to craft lessons that help non-Arabic speakers gain a deep understanding of the language. He currently teaches courses in the Arabic Language
