The Messenger of Allah ﷺ said, "The sisters are believers, Maymuna the wife of the Prophet ﷺ, Umm Fadl bint Harith, Salma the wife of Hamza, and Asma bint Umays who is their sister through their mother."
قال رسول الله ﷺ: الأخوات مؤمنات، ميمونة زوج النبي ﷺ، وأم الفضل بنت الحارث، وسلمى امرأة حمزة، وأسماء بنت عميس أختهن لأمهن.
No references are available.
Nasai narrated it in Al-Fadail (281), and Tabarani in Al-Kabir (11/415), and Hakim graded it sahih (4/32), all of them via Abdullah bin Abdul-Wahhab Hajabi, who said, Abdul-Aziz bin Muhammad Darawardi narrated to us, who said, Ibrahim bin Uqba informed me, from Kurayb, from Ibn Abbas who said, and then he mentioned it.Its chain of transmission is hasan because of Abdul-Aziz bin Muhammad Darawardi, for his hadith is hasan.