Sahih al-Bukhari 2131
Sahih al-Bukhari · Book 34: Sales and Trade · The selling of the foodstuff and its storage
Narrated Salim:
حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ ، أَخْبَرَنَا الْوَلِيدُ بْنُ مُسْلِمٍ ، عَنِ الأَوْزَاعِيِّ ، عَنِ الزُّهْرِيِّ ، عَنْ سَالِمٍ ، عَنْ أَبِيهِ ـ رضى الله عنه ـ قَالَ رَأَيْتُ الَّذِينَ يَشْتَرُونَ الطَّعَامَ مُجَازَفَةً يُضْرَبُونَ عَلَى عَهْدِ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنْ يَبِيعُوهُ حَتَّى يُئْوُوهُ إِلَى رِحَالِهِمْ.
that his father said. "I saw those, who used to buy foodstuff without measuring or weighing in the life time of the Prophet (ﷺ) being punished if they sold it before carrying it to their own houses."