Sahih Muslim Book - 21, Hadith - 3806

وَحَدَّثَنِى أَبُو الطَّاهِرِ وَحَرْمَلَةُ بْنُ يَحْيَى - وَاللَّفْظُ لِحَرْمَلَةَ - قَالاَ أَخْبَرَنَا ابْنُ وَهْبٍ أَخْبَرَنِى يُونُسُ عَنِ ابْنِ شِهَابٍ أَخْبَرَنِى عَامِرُ بْنُ سَعْدِ بْنِ أَبِى وَقَّاصٍ أَنَّ أَبَا سَعِيدٍ الْخُدْرِىَّ قَالَ نَهَانَا رَسُولُ اللَّهِ -صلى الله عليه وسلم- عَنْ بَيْعَتَيْنِ وَلِبْسَتَيْنِ نَهَى عَنِ الْمُلاَمَسَةِ وَالْمُنَابَذَةِ فِى الْبَيْعِ. وَالْمُلاَمَسَةُ لَمْسُ الرَّجُلِ ثَوْبَ الآخَرِ بِيَدِهِ بِاللَّيْلِ أَوْ بِالنَّهَارِ وَلاَ يَقْلِبُهُ إِلاَّ بِذَلِكَ وَالْمُنَابَذَةُ أَنْ يَنْبِذَ الرَّجُلُ إِلَى الرَّجُلِ بِثَوْبِهِ وَيَنْبِذَ الآخَرُ إِلَيْهِ ثَوْبَهُ وَيَكُونُ ذَلِكَ بَيْعَهُمَا مِنْ غَيْرِ نَظَرٍ وَلاَ تَرَاضٍ.

Abu Sa'eed Al-Khudri said: "The Messenger of Allah (s.a.w) forbade two kinds of sales and two kinds of dressing to us. He forbade Mulamasah and Munabadhah transactions. Mulamasah is when a man touches the garment of another with his hand, by night or by day, and he does not examine it any more than that. Munabadhah is when a man throws his garment to another man, and the other man throws his garment to him, and this is how the transaction is done, without examining and without being pleased (with the item)."