Answer:
I say, and with God's help: The dislike (makruh) can be of two types: prohibitive and merely disliked:
First: Prohibitive dislike (makruh tahrimi): According to the two Shaykhs: it is what is better to leave than to do, without being forbidden from the action, established by a speculative evidence, and it is closer to being forbidden. Its ruling is that the doer deserves reproach and deprivation of intercession, but does not deserve punishment by fire. Their statement is the correct one. According to Imam Muhammad: it is what is better to leave than to do, with prohibition from the action, established by speculative evidence. Its ruling is that it is like the forbidden in punishment by fire.
Second: Merely disliked (makruh tanzihimi): it is what is better to leave than to do, without prohibition from the action, established by speculative evidence, and it is closer to being permissible by consensus. Its ruling is that its doer is not punished at all; because it refers to leaving what is preferable, but the one who leaves it is rewarded with a lesser reward. See: Al-Tawdeeh li Sadr al-Shari'ah, 2/257-263, Kashf al-Asrar, 1/84, Radd al-Muhtar, 1/102-103, 1/477, and Badai' al-Sanai', 1/24, and Allah knows best.