Madhun Nabiyy

Can a Muslim Say: Ya Muhammad or Ya Rasul Allah?

In The Name of Allah, Most Gracious, Most Merciful.Respected scholars,As-salamu `alaykumI have few que stions to be asked concerning the acts that are doubtful to fall into the boundaries of ?Shirk?.There is not God but ALLAH and standing or worshipping anyone else along with ALLAH is ?Shirk?.The Prophet himself said, as narrated by `Umar?: ?Do not exaggerate in praising me as the Christians praised the son of Maryam, for I am only a Servant. So, call me the Servant of Allah and His Messenger.? (Reported by Al-Bukhari)Few of our Muslim brothers praise our Prophet Mohammad (peace and blessings be upon him) in a way that is only permissible for praising ALLAH and no one else.Few are some examples of the acts they perform:1. Prayer call (Azaan) should be started with and only name of ALLAH as told by our Prophet Mohammad (peace and blessings be upon him) but these people in fact start with praising our Prophet Mohammad (peace and blessings be upon him) extremely saying ?Ya Mohammad (peace and blessings be upon him)?, ?Ya-Rasool-ALLAH (peace and blessings be upon him)? and Darood-Al-Shareef before calling Azaan.2. Praising our Prophet Mohammad (peace and blessings be upon him) for forgiveness and mercy in a sense that if they approach and ask forgiveness, mercy or else to ALLAH directly, it might not be granted because we are sinful people. So they use a medium between them and ALLAH relying on the concepts of 'Beseeching' and ?Intermediation?.3. Prophet Mohammad (peace and blessings be upon him) a bright white light, which they are able to see and they feel existence of Prophet Mohammad (peace and blessings be upon him) between them & replying to them while they praise in this way.4. Bowing before the grave of Prophet Mohammad (peace and blessings be upon him) and the graves  of Al-Awliya? or As-Sal ihin and asking for forgiveness, mercy or else to ALLAH on their behalf.5. Building structures on graves as the grave of our Prophet Mohammad (peace and blessings be upon him) is also having some sort of structure on it and if it is permissible, when it was built on the grave of Prophet Mohammad (peace and blessings be upon him) and what about perfuming, putting flowers and worshipping on the graves?May Allah reward you for your work and dedication for Muslim Ummah.JazakumAllahu Khayran