Tauheed
Tauheed or oneness of Allah is the first pillar of Islam. For a Muslim or a believer it is an important belief. The sunni or hanafi class or sect firmly believes in tauheed of Allah without which we are doing shirk. on the otherhand repeating regular chants of Ya Ali Madad or Naraye Haideri the shia sect repeatedly commits shirk and their concept of tauheed is incorrect. By chanting Ya Ali madad instead of the correct chant of Ya Allah madad the shia sect is associating partners with Allah and hence committing shirk as we can only say Ya Allah madad instead of Ya Ali Madad. The shia people are giving Hazrat Ali divine powers which is shirk. We cannot associate partners with Allah as Allah is omnipotent and the sole creator and master of the universe. In the end what I would like to say is that Sunni beliefs are correct and shia beliefs are incorrect as sunnis dont commit shirk.