Am not sure...
Allahuma Salli 'ala WellWisher and his family.
I can say that, nothing wrong with it.
I can say WellWisher peace be be upon him (Al-Salamu 'Aleyhi).
I can say this two, nothing wrong with it.
It's not true that these are reserved only for the Prophet SAWS.
إن كان حب آل البيت رفضا فليشهد الثقلان إني رافضي
من أقوال الإمام الشافعي
Please Take a look in the Thread Dedicated to our Beloved Prophet PBUH by clicking here.