Narrated by:Hakim bin Hizam said
It was narrated that Hakim bin Hizam said:"I said: 'O Messenger of Allah, a man is asking me to sell him something that I do not possess; Shall I sell it to him?' He said: 'Do not sell what is not with you."'
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي بِشْرٍ، قَالَ سَمِعْتُ يُوسُفَ بْنَ مَاهَكَ، يُحَدِّثُ عَنْ حَكِيمِ بْنِ حِزَامٍ، قَالَ قُلْتُ يَا رَسُولَ اللَّهِ الرَّجُلُ يَسْأَلُنِي الْبَيْعَ وَلَيْسَ عِنْدِي أَفَأَبِيعُهُ قَالَ " لاَ تَبِعْ مَا لَيْسَ عِنْدَكَ " .
IbnMaja
The Chapters on Business Transactions • Hadith 2187