Sunan Ibn Majah 2282
It was narrated that Abu Mujalid said:
"Abdullah bin Shaddad and Abu Barzah had a dispute about paying in advance. They sent me to 'Abdullah bin Abu Awfa to ask him about it. He said: 'We used to make payments in advance at the time of the Messenger of Allah (ﷺ) and the time of Abu Bakr and 'Umar, for wheat, barley, raisins and dates, to people who did not yet possess those things.' I asked Ibn Abza, and he said something similar."
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، وَعَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، قَالاَ حَدَّثَنَا شُعْبَةُ، - قَالَ يَحْيَى عَنْ عَبْدِ اللَّهِ بْنِ أَبِي الْمُجَالِدِ، وَقَالَ عَبْدُ الرَّحْمَنِ، عَنِ ابْنِ أَبِي الْمُجَالِدِ، - قَالَ امْتَرَى عَبْدُ اللَّهِ بْنُ شَدَّادٍ وَأَبُو بُرْدَةَ فِي السَّلَمِ فَأَرْسَلُونِي إِلَى عَبْدِ اللَّهِ بْنِ أَبِي أَوْفَى فَسَأَلْتُهُ فَقَالَ كُنَّا نُسْلِمُ عَلَى عَهْدِ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ وَعَهْدِ أَبِي بَكْرٍ وَعُمَرَ فِي الْحِنْطَةِ وَالشَّعِيرِ وَالزَّبِيبِ وَالتَّمْرِ عِنْدَ قَوْمٍ مَا عِنْدَهُمْ ‏.‏ 
 فَسَأَلْتُ ابْنَ أَبْزَى فَقَالَ مِثْلَ ذَلِكَ ‏.‏