Sahih al-Bukhari Book 68, Hadith 72

Urwa said to Aisha, "Do you know so-and-so, the daughter of Al-Hakam? Her husband divorced her irrevocably and she left (her husband's house)." `Aisha said, "What a bad thing she has done!" 'Urwa said (to `Aisha), "Haven't you heard the statement of Fatima?" `Aisha replied, "It is not in her favor to mention." 'Urwa added, `Aisha reproached (Fatima) severely and said, "Fatima was in a lonely place, and she was prone to danger, so the Prophet (ﷺ) allowed her (to go out of her husband's house).