Question Summary:
I was praying behind an imam and thought that he is going in ruku so I opened my hand. Then after realizing I closed them again. Is the salah valid?

Question Detail:

I was praying behind imam in fajr salah and imam was in qiyam doing qirat. I mistakenly thought of him going into ruku and opened both my hands to goto ruku. I realized he is not going into ruku and joined both hands again in qiyam. Is my salah valid?

Answer :

Assalāmu `alaikum Warahmatullāhi Wabrakatuh,
The salah is valid.
And Allah Ta'ala Knows Best,
Muftī Ebrahim Desai
Daruliftaa
35 Candella Rd, Durban, South Africa
www.daruliftaa.net