By what right were Abu Bakr and Umar buried in the house of the Messenger of Allah, may Allah's prayers and peace be upon him?

The best of this nation after its Prophet are Abu Bakr and Umar, by the consensus of the Ummah. The people of whims and innovations, however, disagreed with this and slandered the two Sheikhs. Abu Bakr had requested to be buried beside his companion in the cave, and Umar made a similar request, provided Aisha, the owner of the house, granted permission. She gave permission, and he was buried beside his companion.