What is the ruling on someone fasting on behalf of his sick brother, and feeding thirty needy people, and is it permissible to perform prayers on behalf of the living and the dead, and what is the expiation for intentionally abandoning prayer, and is it permissible to recite the Qur’an for his brother, and will his parents be punished for his sin?

If your brother is temporarily unable to fast, he may break his fast and make up for it later. If his inability is continuous, he must break his fast and pay the fidyah (feeding one poor person for each day, amounting to 750 grams of the staple food of the land). Fasting or praying on his behalf is not permissible. However, you should help your father in advising him and reminding him of the seriousness of abandoning prayer. Reciting the Quran on his behalf is not permissible, but the reward of recitation, charity, prayer, or fasting can be dedicated to him.