Abdullah bin Abbas reported,

I had wanted to ask Umar about the two women who had supported one another against the Messenger of Allah ﷺ. I waited a whole year without finding a suitable opportunity, until I went out with him on the pilgrimage.When we reached Zahran, Umar went off to relieve himself and said, "Catch up to me with water for ablution."So I caught up to him carrying the water vessel and began pouring water for him. Seeing my chance, I said, "Commander of the Believers, who were the two women who supported one another against the Prophet ﷺ?"Ibn Abbas said, "Before I had even finished my question, he replied, 'Ayesha and Hafsa.'"

Bukhari 4915

Sahih

حدثنا الحميدي حدثنا سفيان حدثنا يحيى بن سعيد قال سمعت عبيد بن حنين يقول سمعت

ابن عباس يقول

كنت أريد أن أسأل عمر عن المرأتين اللتين تظاهرتا على رسول الله ﷺ فمكثت سنة فلم أجد له موضعا حتى خرجت معه حاجا فلما كنا بظهران ذهب عمر لحاجته فقال أدركني بالوضوء فأدركته بالإداوة فجعلت أسكب عليه الماء ورأيت موضعا فقلت يا أمير المؤمنين من المرأتان اللتان تظاهرتا قال ابن عباس فما أتممت كلامي حتى قال عائشة وحفصة

البخاري 4915صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Tafsir
Chapter
His saying, "If you two repent to Allah, your hearts have indeed inclined"
Numbering
Darussalam 4915
Bukhari 4915