Abu Dawud
Prayer
Book Number: 002 / Hadith Number: 944
Narated By AbuHurayrah : The Prophet (pbuh) said: Saying Tasbih applies to men during prayer and clapping applies to women. Anyone who makes a sign during his prayer, a sign which is intelligible by implication, should repeat it (i.e. his prayer).
(AbuDawud commented on the Hadith saying, this is a result of confusion.)