It is prohibited to sell cats like it is prohibited to sell dogs
عَنْ أَبِي الزُّبَيْرِ، قَالَ سَأَلْتُ جَابِرًا عَنْ ثَمَنِ الْكَلْبِ، وَالسِّنَّوْرِ، قَالَ زَجَرَ النَّبِيُّ صلى الله عليه وسلم عَنْ ذَلِكَ
Abu Zubair said:
I asked Jabir about the price of a dog and a cat. He said, “Allah’s Messenger [ﷺ] disapproved of that.”
Shaikh Bin Baz rahimahullah said:
“The first two Ahaadith indicate the prohibition of selling dogs and that their price is filth. The Prophet [ﷺ] disapproved the price of the dog and the price of the (السِّنَّوْرِ) and it is the cat. It is not allowed to sell cats…”
[al-Ifhaam Sharh Umdatul-Ahkaam (1/535)]
Imam Shawkani rahimahullah said:
“In this Hadith is evidence for the prohibition of selling cats. This was said by [i.e. was the opinion of] Abu Hurairah, Mujaahid, Jabir ibn Zaid, and that was quoted from Ibnul-Munthir. Ibnul-Munthir aslo quoted that from Tawus. The majority took the view of the permissibility of selling the cat and they responded to this Hadith that preceded by weakening it. You [the reader] know the defense for that. It was said: the prohibition is carried to mean dislike and that selling it is not from moral character and chivalry. It is not hidden that this [argument] is removing the prohibition from its real meaning without a [valid] cause/reason”.
[Nayl al-Awtaar (5/172)]
So it is prohibited to sell it according to the more correct opinion and the Hadith is in Saheeh as found in Saheeh Muslim.
And Allah Knows Best
Faisal Ibn Abdul Qaadir Ibn Hassan