Bismillahirrahmanirrahim
Hadith: Mazlum Ki baddua se bacho
Ibn Abbas Radiallahu anhuma se rivayat hai ki Rasoollallah Sallallahu Alaihi Wasallam ne jab Muadh Radiallahu anhu ko yemen bheja to unsey ye kaha ki mazloom ki Baddua se dartey rahna kyunki uskey aur Allah Taala ke darmiyan koi parda nahi hota
Sahih Bukhari, Vol 3, 2448
-------------------------------------
Narrated Ibn Abbas Radiallahu anhuma : The Prophet Sallallahu Alaihi Wasallam sent Mu'adh Radiallahu anhu to Yemen and said, Be afraid, from the curse of the oppressed as there is no screen between his invocation and Allah.
Sahih Bukhari, Vol 3, Book 43, No. 628: