Ruling on prostrating for forgetting Qunoot or forgetting to recite out loud

Do I have to do the prostration of forgetfulness when I forget to say the du’aa’ of Witr? Should I do the prostration of forgetfulness if I do not recite out loud at times when the recitation should be out loud, because I forgot?.
Praise be to Allaah.
If a person omits the Qunoot of Witr because offorgetfulness or he does not recite out loud in a prayer where the recitation should done out loud, out of forgetfulness, he does nothave to do the prostrationof forgetfulness, but if he does prostrate there is nothing wrong with that. Doing the prostration of forgetfulness for omitting a Sunnah of prayer is permissible, but it is not obligatory.
:-* key word:- Forgetfulness During Prayer/ - - - :-> Transtors: 1.http://free-translation.imtranslator.net/lowres.asp 2.http://translate.google.com/m?twu=1&hl=en&vi=m&sl=auto&tl=en