During sujood (i.e. prostration) in wajib prayers, is it permissible to recite a dua or is that only in the last sajdah of prayer? If it is permissible, what are the mustahab supplications that are to be recited during sujood?
It is recommended to recite dua in sujood or ruku’ in all the units of prayers.
There are different dua that can be recited such as:
يا خير المسؤولين ويا خير المعطين ارزقني وارزق عيالي من فضلك فإنك ذوالفضل العظيم
And the most important one is the salutation on the prophet and his progeny (pbuh&hp) which is:
اللهم صل على محمد وآل محمد