REFUTING THE CLAIM THAT ACTS OF THE KHALIFAS ARE NOT PROOF OF THE BIDDAH BECAUSE THEY BECAME THE SUNNAH OH KHALIFAS

This refutation is by Mufti Ahmad Yar Khan Naimi. He wrote an article on biddah which can be read from here : 
http://mrehan15.blogspot.com/2011/12/innovation-bidat-in-islam-ja-al-haq.html