If the One led in Prayer forgets
Question :
I prayed behind an Imam and I forgot to say the Tasbih while I was prostrating in the first prostration - what should I do? Should I prostrate after the Imam's Taslim (i.c. the prostration of forgetfulness) or what?
Answer:
You are not required to make the prostration of forgetfulness, neither before the Imam's Taslim, nor after it. The Imam bears the burden of this forgetfulness and nothing is required of the worshipper behind him.
Source:
Ibn Jibreen
Fatawa Islamiyah, Vol. 2 Page 280