Sahih Muslim Book - 21, Hadith - 3805

وَحَدَّثَنِى مُحَمَّدُ بْنُ رَافِعٍ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا ابْنُ جُرَيْجٍ أَخْبَرَنِى عَمْرُو بْنُ دِينَارٍ عَنْ عَطَاءِ بْنِ مِينَاءَ أَنَّهُ سَمِعَهُ يُحَدِّثُ عَنْ أَبِى هُرَيْرَةَ أَنَّهُ قَالَ نُهِىَ عَنْ بَيْعَتَيْنِ الْمُلاَمَسَةِ وَالْمُنَابَذَةِ. أَمَّا الْمُلاَمَسَةُ فَأَنْ يَلْمِسَ كُلُّ وَاحِدٍ مِنْهُمَا ثَوْبَ صَاحِبِهِ بِغَيْرِ تَأَمُّلٍ وَالْمُنَابَذَةُ أَنْ يَنْبِذَ كُلُّ وَاحِدٍ مِنْهُمَا ثَوْبَهُ إِلَى الآخَرِ وَلَمْ يَنْظُرْ وَاحِدٌ مِنْهُمَا إِلَى ثَوْبِ صَاحِبِهِ.

It was narrated from Abu Hurairah that he said: "Two kinds of transaction were forbidden: Mulamasah and Munabadhah. Mulamasah is when each person touches (Yalmis) the garment of his companion without examining it further, and Munabadhah is when each person throws (Yanbidh) his garment to the other, and neither of them examines the garment of the other."