Making one sajdah sahw instead of two

Q: If a person fulfilled all his past sajdah sahw as a single sajdah instead of 2 sajdas due to ignorance of it, will qaza have to be made? 

A: No. 

And Allah Ta'ala (الله تعالى) knows best.

Answered by:

Mufti Ebrahim Salejee (Isipingo Beach)