What is the ruling according to the Hanafis on lying on one's back in the mosque with one leg crossed over the other?

Lying on one's back in the mosque with one leg placed over the other is permissible if it does not expose the 'awrah (private parts), and the proof for this is the action of the Prophet (peace and blessings be upon him). The hadiths that prohibit this are understood to apply when the 'awrah is exposed. The Prophet's action was in a manner that did not expose anything from his 'awrah, and thus it is permissible and not disliked. His action might have been to demonstrate permissibility and that the prohibition is not absolute, but rather applies to those whose 'awrah is exposed or close to being exposed.