Reciting a masnoon dua in the first qa'da of a four rakaat nafil salaah
Q: In a four rakaat sunnah ghayr muakkad salaah or a four rakaat nafila prayed with one taslim, if one reads in the first tashahhud after the durood ibrahimiyyah a masnoon dua does this entail sajdah sahw? Or is this permissible?