Speech of opposition : It is not correct to say ‘Dorood Shareef on others except Nabi-Rasool.
What is said in Islam : It is written in Quraan Shareef and Hadish Shareef that Allah said Dorood Shareef on us and Huzur Pak SallallahuAlaihi Wasallam also says Dorood Shareef ton His followers. So Awlia-E-Kiram says Dorood Shareef to their respected Awlia-E-Kiram. Which is written in all the kitab of Tasaouf. So it is legal and Sunnat to say Dorood Shareef to Oli Allah.