السلام عليكم ورحمة الله وبركاته May Allah bless and preserve you Skeikh بارك الله فيك I want to read Ar Rad Ala Jahmiyyah and Bishr Al Marisi from Imam Ad Darimi RahimuAllah. And I want to know if you Sheikh think that I should read it? جَزَاكُمُ اللَّهُ خَيْرً

This depends on your level. If you are someone who has studied Al-Aqeedah Al-Wasitiyyah, Al-Hamawiyyah, Al-Tadmuriyyah, as well as Al-Tahawiyyah, and you have understood them well through some of their explanations and want to move on to specialized texts, then yes, of course. However, if you are someone who has just started out (maybe you have just finished Al-Wasitiyyah), then we say stick to the path that the scholars have set out. You should follow the one I mentioned above, which is the recommendation of Shaykh al-Allama Salih al-Fawzan, and afterwards you can move on to these other books.