Salaam and thank you for your kind answer, can you please help me with the below question,

During the time of Ali(as), who was owning fadak at that time and what did Imam Ali(as) do with it? Can you also quote some references (only book names )
And what happened to fadak after his (as)martyrdom
Thank you and waslaam

It was 140 km from madina and during the time of Imam Ali as it was in the custody of bani ummayah and Imam was engaged in the imposed war.
For details best book is history of Fadak written by Shaheed Baqir As sadr