From Sahih Bukhari (Hadith 4142):
Narrated Az-Zuhri:Al-Walid bin `Abdul Malik said to me, "Have you heard that `Ali' was one of those who slandered `Aisha?" I replied, "No, but two men from your people (named) Abu Salama bin `Abdur-Rahman and Abu Bakr bin `Abdur-Rahman bin Al-Harith have informed me that Aisha told them that `Ali remained silent about her case
Reference: Bukhari 4142