Ata' (may Allah have mercy on him) said that there is no harm in taking the price of a cat. The Shaykh (may Allah have mercy on him) said: When the sahih hadith is established and its abrogation is not known, there is no room for the statement of Ata'.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 11039