Who taught you ?!?!
What to say when bowing & prostrating, when to bow and prostrate, and how many bowings & prostrations to do, most definitely DID NOT come from your hadiths & Sunnah. See for yourself. QSS.ORG :: QSS Online Books :: Sifatu Salat-in-Nabee (saws) :: Recitation All is mentions is the number of units and suras recited - which is NOT what Abraham did for salat because he did not have QUran to recite. It mentions bowing and prostrating, but not when, what to say or how many. So, your claim is already moot.
Secondly, all the religious duties were already intact before Prophet Muhammad. They came to use from Abraham, and Muhammad was enjoined to follow the religion of Abraham.
Thirdly, Quran states very clearly that Muhammad was commanded not to issue any other religious teachings other than the Quran of GOD would have stopped the revelations to him.
Fourth, 3:81 states a messenger will come after all the scriptures given to the prophets have been revealed and confirm them all. If he is to confirm them, he would have to have knowledge of what they were given, which would include the religious duties given to us through Abraham.
Fifth, all REAL messengers come with proofs (miracles) from GOD that they are, in fact, GOD’s messenger. The messenger stated in 3:81 was given the math miracle of QUran.
Sixth, as per GOD’s decree in 3:81, he purified the religion and restored the religious duties back to their original pristine purity.
Of course, I do not expect you to believe me. Nevertheless, the math miracle is real. Anybody who is sincerely seeking the truth, GOD will guide them to it. Inevitably, the sincere will abandon the corrupted Islam (Sunni, Shia, etc.). Those of you seeking real answers, can find them here.
peace