Repeat that with the mu addhin.
Yes, the dua is sunnah.

When repeating the athan after the mu addhin in fajr, what should I say in response to “assalatu khairum minan naum”. And is the dua after athan, part of the Sunnah Allaahumma Rabba haathihid-da ‘watit-taammati wassalaatil-qaa’imati, ‘aati Muhammadanil-waseelata walfadheelata, wab ‘ath-hu maqaamam-mahmoodanil-lathee wa’adtahu?

Supplications | March 20, 2014 6:19 pm
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Am i supposed to be sitting on the bed when i recite the supplications before sleeping,and my feet be touching the ground? Or just on my bed?
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Could you please translate this for me. This is one of the types of Istiaadah that I learnt. “Audhu billah-il adheem wa min wajhih-il kareem wa sultanih-il qadeem mina-shaytan ir-rajeem”