Sajda Sahu in Nafl

Salaah / By
Q: Is Sajda Sahu (prostration for a mistake in Salaah) for all Salaah like Nafl, etc or only for Fard?
A: Sajda sahu must be made in all prayers if a mistake occurs that warrants sajda sahu; in nafl, sunnat and faradh salaah.
Mufti Siraj Desai