Muwatta Imam Malik Book of Business Transactions, Hadith 17
Yahya related to me from Malik from Rabia ibn Abd ar-Rahman that al-Qasim ibn Muhammad would sell produce from his orchard and keep some of it aside.
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ رَبِيعَةَ بْنِ أَبِي عَبْدِ الرَّحْمَنِ، أَنَّ الْقَاسِمَ بْنَ مُحَمَّدٍ، كَانَ يَبِيعُ ثَمَرَ حَائِطِهِ وَيَسْتَثْنِي مِنْهُ .