The Messenger of Allah ﷺ said, "Muslim women, let no neighbor look down upon what another neighbor gives her, even if it is just a sheep's hoof."
حدثنا أبو كامل حدثنا ليث حدثني سعيد عن أبيه
أن رسول الله ﷺ كان يقول يا نساء المسلمات لا تحقرن جارة لجارتها ولو فرسن شاة
Its chain of transmission is sahih. Layth is Layth bin Saad the imam. Saeed is the son of Abu Saeed Maqburi. Bukhari related this hadith in 10:272, and Muslim in 1:282, both through Layth bin Saad, with this chain. Bukhari also related it in 5:144-145 through Ibn Abu Dhib, from Saeed Maqburi, from his father, from Abu Hurairah. It will also come later at 8052 and 10407 through Layth, at 10583 through Ibn Abu Dhib, and at 9077 through both Ibn Abu Dhib and Layth.Regarding the phrase "O Muslim women," Hafiz said, Iyad said, the more correct and better-known reading puts "nisa" in the accusative and "muslimat" in the genitive, as a genitive construction, which is the reading of the easterners, this being a case of adding a word to its own description, as in the phrase masjid jami. Among the Kufans this is taken at face value, while the Basrans assume an elided word within it. Suhayli and others said it came with the hamza in the nominative, treating it as a single vocative noun, and it is also permissible for "muslimat" to be nominative, as a description matching the wording, in the sense of "O you Muslim women." The accusative, by contrast, would be a description according to position, and the kasra placed on the ta follows the accusative.Firsin, with a kasra on the fa and on the plain sin, with a silent ra between them, and ending in a nun, is a bone with little meat on it, being the foot of a camel, like the hoof of a riding animal. It may also be used metaphorically for a sheep, so one says "firsin of a sheep," though what belongs to a sheep is properly called the hoof. The nun is considered an added letter, though some say it is original. So said Ibn Athir.