Adding "Wabihamdi" by Shafii's

[Nasrollah]

I have a shafii mottabi' friend, who is asking why they add wabihamdih in tasbeh of ruko and sujod

any answer?

[Abu Dajanaa]

I have a shafii mottabi' friend, who is asking why they add wabihamdih in tasbeh of ruko and sujod

any answer?

It is based on hadith. These are the references
sahih hadith, transmitted by Abu Dawud, Daaraqutni, Ahmad, Tabarani & Baihaqi .