The Messenger of Allah ﷺ forbade trailing garments during prayer and that a man should cover his mouth. Abu Dawud said: This tradition has also been narrated by 'Isi on the authority of 'Ata' from Abu Hurairah: The Prophet ﷺ forbade trailing garments during prayer.  

أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنِ السَّدْلِ فِي الصَّلاَةِ وَأَنْ يُغَطِّيَ الرَّجُلُ فَاهُ  

This (practice of ‘Ata’) weakens the tradition (narrated by Abu Hurairah).  

أَكْثَرُ مَا رَأَيْتُ عَطَاءً يُصَلِّي سَادِلاً