Dua in Obligatory sajda in Quran

1)      Surah Sajdah 32:15 2)      Surah HaMim Sajdah 41:38 3)      Surah Najam 53:62 4)      Surah Alaq 96:19 

as per Agha Khoei and Agha Seestani as per ehtiate wajib use proper sajdagah

1108    When a person performs the obligatory Sajdah upon hearing the relevant verse, it will be sufficient even if he does not recite any Zikr.

However, it is Mustahab to recite Zikr, preferably the following:

La ilaha illal lahu haqqan haqqa; La ilaha illal lahu imanan wa tasdiqa; la ilaha illal lahu 'ubudiyyatan wa riqqa; Sajadtu laka ya Rabbi ta'abbudan wa riqqa la mustankifan wa la mustak biran bal ana 'abdun zalilun za'ifun kha'ifun mustajir.