Umar b. Khattab l.a. wrote a letter to Muaiyah l.a., the contents of which were as follows:
‘I went to the house of Ali, after having decided with others to bring him out of the house. Fatima came out and I told her, ‘Tell Ali to come out and swear the oath of allegiance to Abu Bakr l.a. for all Muslims have done so.’
Fatima replied that Ali was busy in arranging the Quran.
I said, ’Keep this talk aside, tell Ali to come out or else we will forcefully enter the house and bring him out!’
At that moment, Fatima came and stood with her back towards the door and said, ‘O misled liars! What do you say and what do you want from us?’
I addressed her and she said, ‘What do you want O Umar?’
I replied, ‘Why has your cousin sent you here to reply while he remains seated behind veils?’
Fatima said, ‘Your rebellion has brought me out O Umar and I have ended my proof upon you, and every misled is erroneous.’
I said, ‘Keep these vain and womanish words aside and tell Ali to come out of the house.’
She replied, ‘You are not worthy of love and generosity. Do you make us fear the ‘Party of the Devil’ O Umar? Verily the Party of the Devil are the losers!’ (Surah Mujadilah (58): 19)
Hearing this I said, ‘If Ali does not come out of the house, I will bring fuel and kindle a fire and burn down the house along with its dwellers or I will take Ali to the Masjid for (the oath of) allegiance.’
Then I took the whip (of Qunfudh) and struck Fatima with it and told Khalid b. Walid, ‘Bring firewood’, then again I told her, ‘I will burn down the house!’
Fatima said, ‘O enemy of Allah and enemy of the Prophet of Allah s.a.w.a. and the enemy of the Commander of the Faithful!’
Two hands came out from behind the door to stop me from entering the house, however I pushed back the hands and then pushed the door with force, while striking at her hands with the whip, so that she would let go of the door. She wailed and wept due to the intense pain of the whip and her weeping was such a heart-rendering scream that it was as if my heart was going to melt and I almost retreated. Suddenly, I recalled the envy and avarice which I had towards Ali because he was the one that had shed the blood of the eminent Quraish apostates and thus, I kicked at the door, however she had grasped the door such that it would not open. When I kicked at the door, I heard the cry of Fatima and thought that this cry would topple the entire city of Medina.
In this state Fatima called out, ‘O Father! O Prophet of Allah! How do they treat your beloved and your daughter! O Fizza! Hasten to my aid, for by Allah, the child in my womb has been killed.’
I presumed that Fatima had stood with her back to the wall due to the extreme pain of labour and at this point, I pushed at the door with intense force and the door opened. When I entered therein, Fatima came and stood in front of me (even though she was in immense pain), but my intense anger had overwhelmed me as if a veil was cast before my eyes. In this state, I slapped her on her face, striking her veil, and she fell down to the ground.’”
When the oppressors attacked the house of Hazrat Fatima Zahra (s.a.), they found themselves 
In the dispute of Fadak, the rulers insisted that Hazrat Fatima Zahra (s.a.) present two male witnesses (or"As for your daughter, she will be oppressed and deprived, and the rights which you gave her will be usurped. She will be beaten while she is pregnant, her sanctity will be breached, and her house will be entered without permission. Then she will be humiliated and disrespected. She will find no protector, she will suffer from a miscarriage because she will be beaten, and she will die as a result of that beating."