Sahih Bukhari Volume 7, Book 77, Hadith 5822

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا اللَّيْثُ، عَنْ يُونُسَ، عَنِ ابْنِ شِهَابٍ، قَالَ أَخْبَرَنِي عَامِرُ بْنُ سَعْدٍ، أَنَّ أَبَا سَعِيدٍ الْخُدْرِيَّ، قَالَ نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم عَنْ لِبْسَتَيْنِ وَعَنْ بَيْعَتَيْنِ، نَهَى عَنِ الْمُلاَمَسَةِ وَالْمُنَابَذَةِ فِي الْبَيْعِ، وَالْمُلاَمَسَةُ لَمْسُ الرَّجُلِ ثَوْبَ الآخَرِ بِيَدِهِ بِاللَّيْلِ أَوْ بِالنَّهَارِ، وَلاَ يُقَلِّبُهُ إِلاَّ بِذَلِكَ، وَالْمُنَابَذَةُ أَنْ يَنْبِذَ الرَّجُلُ إِلَى الرَّجُلِ بِثَوْبِهِ، وَيَنْبِذَ الآخَرُ ثَوْبَهُ، وَيَكُونَ ذَلِكَ بَيْعَهُمَا، عَنْ غَيْرِ نَظَرٍ وَلاَ تَرَاضٍ، وَاللِّبْسَتَيْنِ اشْتِمَالُ الصَّمَّاءِ، وَالصَّمَّاءُ أَنْ يَجْعَلَ ثَوْبَهُ عَلَى أَحَدِ عَاتِقَيْهِ، فَيَبْدُو أَحَدُ شِقَّيْهِ لَيْسَ عَلَيْهِ ثَوْبٌ، وَاللِّبْسَةُ الأُخْرَى احْتِبَاؤُهُ بِثَوْبِهِ وَهْوَ جَالِسٌ، لَيْسَ عَلَى فَرْجِهِ مِنْهُ شَىْءٌ‏.

Narrated By Abu Sa'id Al-Khudri : Allah's Apostle forbade two ways of wearing clothes and two kinds of dealings. (A) He forbade the dealings of the Mulamasa and the Munabadha. In the Mulamasa transaction the buyer just touches the garment he wants to buy at night or by daytime, and that touch would oblige him to buy it. In the Munabadha, one man throws his garment at another and the latter throws his at the former and the barter is complete and valid without examining the two objects or being satisfied with them. (B) The two ways of wearing clothes were Ishtimal-as-Samma, i.e., to cover one's shoulder with one's garment and leave the other bare; and the other way was to wrap oneself with a garment while one was sitting in such a way that nothing of that garment would cover one's private part.