Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 2 years ago

Bismihi ta'ala

The dhikr that should be recited in sajdatay al-sahw are:

بِسْمِ اللهِ وَ بِاللهِ، اَلسَّلَامُ عَلَیْكَ أَيُّـهَا النَّبِيُّ وَ رَحْمَةُ اللهِ وَ بَـرَکَاتُهُ

bismillāhi wa billāhi, assalāmu ʿalayka ayyuhan nabiyyu wa raḥmatullāhi wa barakātuh.
In the name of Allah and by Allah. Peace be upon you O Prophet, and Allah’s mercy and His blessings (be upon you too).

I also have a tutorial that could be of benefit as well:

And Allah knows best.