Osman Gani brother this is not only imam Ahmad Raza khan, it's universal. listen to scholars who r Sunnis but not from indo pak. please do your home work before you issue "fatawas"
Osman Gani start with azan Muhammad in namaj our prophet. He is also in namaj that is not sirk if u ask help from prophet u will get answer. From allah strait away from. Allah Of course. There is Allah but every where our prophet. Azan not sirk namaj not sirk praise our prophet and help from him is not sirk