Hadith 9435

وأَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : " نَهَى عَنْ لُبْسَتَيْنِ : الصَّمَّاءِ ، وَأَنْ يَحْتَبِيَ الرَّجُلُ بِثَوْبِهِ لَيْسَ عَلَى فَرْجِهِ مِنْهُ شَيْءٌ ، وَعَنِ الْمُلَامَسَةِ ، وَالْمُنَابَذَةِ ، وَالْمُحَاقَلَةِ ، وَالْمُزَابَنَةِ " .
And the Noble Prophet (peace and blessings be upon him) forbade two types of clothing: one is that a person sits wrapped in a single garment with nothing covering his private parts at all, and the second is that a person wraps himself in his lower garment while praying. And he forbade the transactions of mulamasah, munabadhah, muhaqalah, and muzabanah.
Hadith Reference مسند احمد / مسند المكثرين من الصحابة / 9435
Hadith Grading حکم دارالسلام: إسنادہ صحیح ، خ : 2145 ، م : 1511 ، 1545