Dear Brothers and sisters
As-Salamu Alaykum wa rahmatulallahi waba raqaatuhu
I heard that going to Mazaar e sharif of Muslim saints is counted as Shirk i.e. praying to someone or praying through someone is forbidden.
"However, if one seeks the help of a Prophet, saint or any other creation of Allah believing him to be omnipotent like Allah, then this polytheism (shirk) and can never be considered permissible. Similarly, one believes that Allah alone is Omnipotent, but also believes that He has delegated a part of His power to an angel, a Prophet or a saint who exercises full and independent authority in that area, then this will also be considered Shirk, and thus forbidden." [Ref: http://qa.sunnipath.com/issue_view.asp?HD=7&ID=1925&, para 6]