Being a Sahabi doesn't give you an open license to curse (or critisie / سب ) another Sahabi. And especially, those Sabaha who accepted Islam very late are prohibited to سب (not talking about لعن) "Sabiqun al-Awwalun."

Following is the hadith (#6488) of Sahih al-Muslim: https://twitter.com/HarisKhanNiazii/status/1303022658196508675

Khalid did سب on 'Abd al-Rahman and on that incident, the Prophet (s) said that one shouldn't سب his Sahaba.

Khalid was also a Sahabi. But Prophet (s) prohibited him to سب on one of the Sabiqun al-Awwalun.

Also the wordings to the Prophet (s) imply that even if Khalid spended as much gold as Uhud, it would not amount to as much as one mudd of one of them or half of it.

It clearly means that this prohibition is special for Sabiqun al-Awwalun.

Note that here the word تسبوا is used. The Prophet (s) said to Khalid not to سب (again, not لعن) 'Abd al-Rahman.

The Prophet (s) could never give Mu'awiyah the permission to do سب on 'Ali (a). Could he?

He couldn't even listen to the complaints against 'Ali (a).

When some people complained him of 'Ali, he ignored them first but then became furious and said, "What do you want from 'Ali? What do you want from 'Ali? He is from me and I am from him. He is the Wali of every believer after me."

How could the Prophet (s) bear someone doing سب on 'Ali (a) when he became angry on a mere complaint?!

This hadith is an atom bomb on Mu'awiyah and his lovers. How could Mu'awiyah do سب on 'Ali (a) when Khalid was not allowed to do that on 'Abd al-Rahman.

All this thread was general, but in this tweet of the thread, I ask you @HarisKhanNiazii why do you defend the سب of Mu'awiyah on 'Ali (a) when the Prophet (s) had already prohibited Khalid from doing that on 'Abd al-Rahman?!

I know you will do some false interpretation of these 2 ahadith. So, I don't expect any logical answer from you. Rather I leave it to your conscience.