There are two facts that the Muslim majority accepts without much debate:         
  1. The Shaikhain refused to grant Fadak to Hazrat Fatima Zahra (s.a.) by dismissing the testimonies of her infallible husband Ameerul Momineen (a.s.) and even Umm Ayman on the excuse that Prophets (s.a.w.a.) do not leave any inheritance.
  2. Abu Bakr and Umar are buried next to the Holy Prophet (s.a.w.a.) by virtue of the property inherited by their daughters Ayesha and Hafsa.
The obvious contradiction between points a. and b. is plain even to a lay Muslim –
If Hazrat Fatima Zahra (s.a.) cannot inherit property from her father (s.a.w.a.) then how can the Shaikhain inherit their burial place in the Prophet’s (s.a.w.a.) house?
An eye-opening debate on the subject nullifies the burial of the Shaikhain and proves that the land on which they are buried is usurped from the Muslims.
Abu Hanifa fails to defend the Shaikhain
One day, Fuzzaal Ibn Hasan Ibn Fuzzaal al-Kufi (refer Qamoos al-Rijal, vol. 4 pg 313), a companion of Imam Jafar Sadiq (a.s.), was walking through the streets of Kufa with his friend.
He saw Abu Hanifa surrounded by people who were posing religious questions.
Fuzzaal decided to approach Abu Hanifa with some questions of his own, despite protests to the contrary by his friend, who warned him that Abu Hanifa was an intelligent person. Fuzzaal poses as a ‘Sunni’ Muslim with a Shia brother.
(We reproduce excerpts of the debate relevant to the discussion.)