Keeping arms away from body when prostrating

Is it obligatory to keep the arms away from body when prostrating? Would my prayers be invalid if i don’t do this when prostrating? 

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@peepso_user_2(RZ)
Walaikumsalam, do you mean interpreting (any) knowledge through the islamic perspective
2 months ago
@peepso_user_1185(AbangPete)
hi there, app not found on Playstore
2 months ago