Why lying face down is forbidden in Islam?

Dear Brother / Sister,

It is not haram (forbidden) to lie facedown. However, our Prophet (pbuh) did not find it appropriate to lie facedown. Our Prophet awoke someone who slept like that in the mosque and said, "To lie down like this is a form of lying down that Allah does not like. (Abu Dawud, Adab, 95; Tirmidhi, Adab 21)
As it is seen, our Prophet (pbuh) did not find it appropriate to lie facedown and stated that it was a form of lying down that Allah did not like. (See İbrahim Canan, Kutub-i Sitte Tercüme ve Şerhi, Akçağ Yayınları: 16/168)
Therefore, it is not haram or a sin to lie facedown – without the intention of resembling non-Muslims – but it is contrary to good manners and causes deprivation from the reward of sunnah.

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