When Fadak was forcefully usurped from the Chief of the Ladies of Universe — Fatemah Zahra (s.a.) — by the first caliph Abu Bakr, the infallible daughter of Holy Prophet (s.a.w.a) ordered that curtains should be drawn inside Masjid-e-Nabawi.
Following which, Janabe Zahra (s.a.) entered the mosque and gave an articulate and coherent sermon. First, she (s.a.) averred the Oneness of Allah the Almighty then she spoke about Islam and its laws after which she (s.a.) started to converse on the issue of Fadak.
Janabe Fatemah (s.a.) said: “Everyone is fully aware that Fadak was gifted to me by my respected father (s.a.w.a.) and it was under my ownership. Therefore, on what premises has the government confiscated it?”
After her speech, Abu Bakr retorted, “We want you prove to us by producing witnesses that what you claim [that Fadak was gifted to you by The Messenger of Allah (s.a.w.a.)]”
Ironically, in the light of Islamic laws, it is Abu Bakr who should have put forward evidence for claiming Fadak from Fatemah Zahra (s.a.). Religious rules clearly state that a thing which is already in possession of a Muslim is in itself an irrefutable evidence that the thing belongs to him/her.
On this basis, Abu Bakr and Umar ibn al-Khattab should have brought forward evidence for filching Fadak from the Ahlul Bayt (a.s.).
Ameerul Momineen Ali ibn Abi Talib (a.s.), Imam Hasan (a.s.) and Imam Husain (a.s.) testified that Fadak was gifted to Janabe Zahra (s.a.) by her father (s.a.w.a.). The fourth witness was Umme Ayman — regarding whom Holy Prophet (s.a.w.a.) had categorically stated that he was from among the women of paradise — and the fifth person to testify was Asma binte Umays.
But Umar rejected the testimonies of those pious personalities whom the Holy Prophet (s.a.w.a..) had taken along with him to confront the Christians of Najran. This incident is famous as Mubahela and has been documented in Surah Nisa.
Umar rejected Ali-e- Murtaza’a (a.s.) testimony because he felt that Imam Ali (a.s.) (nauzambillah) would be partial towards his family members. He discarded Hasnain’s (a.s.) testimony on the premises that they were still children and had not reached the age of puberty. He also found the testimonies of Umme Ayman and Asma defective, as they were women.
Imam Ali (a.s.) told Abu Bakr and Umar that asking Janabe Zahra (s.a.) to provide proof was contrary to what the Holy Quran says. Then Imam Ali (a.s.) turned towards Abu Bakr and asked, “If two people testify that Fatemah (s.a.), may Allah forbid, has committed a sin, will you accept it?
Abu Bakr replied: “Yes I will.”
Imam Ali (a.s.) said: “If you go ahead and do this then according to the Quran you are a kaafir because Allah – the Lord of the Worlds – has testified in Quran that Fatemah is Pure and Infallible:
O’ the People of (Messenger’s) Household, Allah wishes to keep away from you (all kinds) of impurities and keep you pure, as pure can be.
(Surah Ahzab: 33)
“Do you not accept Allah as a witness? And accept two common men as witness?”
At this particular juncture those present in the mosque began to weep and the wailing started to echo loudly.
Sensing trouble, the authorities dismissed the gathering and the people returned to their homes.
When Abu Bakr and Umar were left alone, the former told the latter, “Did you see how Ali insulted us?”
Umar said, “You should get Ali killed.”
Abu Bakr said, “Who can kill Ali?”
Umar said, “The most ideal person to execute this plan is Khalid ibn Waleed (May Allah’s infinite curse be on him)
Khalid ibn Walid was summoned and when he arrived Abu Bakr told him, “O Khalid when I am about to recite the salam in the morning prayer, you kill Ali.”
Abu Bakr’s wife Asma, who is counted amongst the shias of Imam Ali ibn Abi Talib (a.s.) overheard the conversation and duly informed Imam Ali (a.s.) of the evil plot through her slave.
Imam Ali (a.s.) replied to her that these people weren’t capable of harming him and when the morning arrived, Khalid ibn Walid picked his sword and sat himself next to Imam Ali (a.s.) in the mosque.
While performing the prayers when Abu Bakr began to recite Salam he started to develop cold feet with regards to his evil design and he thought that killing Imam Ali (a.s.) in the mosque may only lead to a riot and put him in trouble.
He was so embarrassed with his satanic scheme that he elongated his Salam that the sun was almost about to come out. Left with no choice he was forced to say in his prayer, “O Khalid! Don’t carry out my orders,” after which he said salam and concluded his prayers.
After the prayers, Imam Ali (a.s.) turned towards Khalid and asked him, “What did Abu Bakr ask you to do?”
Khalid replied, “He had asked me to kill you.”
Imam Ali (a.s.) asked him, “Did you really intend to kill me?”
Khalid replied, “Yes”.
Imam Ali (a.s.) grabbed Khalid’s neck in such a way that the tyrant started wheezing and no one in the mosque dared to stop Imam Ali (a.s.) and save Khalid from him.
Abu Bakr turned towards Umar ibn al-Khattab and said, “This all because of your wretched plans, go call Abbas so that he requests Ali to let Khalid go.”
When Abbas came, Imam Ali (a.s.), out of respect towards his uncle, let his hands off the despicable Khalid.
Ref: Siddiqatul Kubra Fatemah Zahra (s.a.), page 124