What is the ruling on crying for the deceased without wailing?

Question:
He says: My grandfather passed away eight months ago, and my mother, when she remembers him, cries, but it is crying without wailing, and she prays for him for mercy and forgiveness. Is this crying forbidden? And is the deceased affected by it? May Allah reward you with good.

Answer:
There is no harm in crying for the deceased; indeed, it is part of the mercy that Allah places in the hearts of His deceased servants. Crying for the deceased and making du'a' for him is a recommended matter. The Prophet (peace and blessings be upon him) cried and informed that Allah does not punish for the tears of the eye and the sadness of the heart, but He punishes for what the tongue says, what the tongue speaks, and also for actions such as tearing the cheeks, tearing open the clothes, and the claims of the pre-Islamic age of ignorance (jahiliyyah). So, this is what the poetess mentioned regarding her crying for her father and making du'a' for him; this is a good thing. However, it is befitting for the Muslim to display patience, fortitude, and satisfaction with the decree of Allah (Glorified and Exalted is He). As for making du'a', it is recommended for the deceased always and forever, whenever possible, because Allah benefits him through it. Yes. May Allah reward you with good, and may He do you good.