Narrated Aisha, Ummul Mu'minin:
Dawud ibn Salih ibn Dinar at-Tammar quoted his mother as saying that her mistress sent her with some pudding (harisah) to Aisha who was offering prayer. She made a sign to me to place it…
حَدَّثَنَا الْعَبَّاسُ بْنُ الْوَلِيدِ الدِّمَشْقِيُّ، حَدَّثَنَا مَرْوَانُ بْنُ مُحَمَّدٍ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ مُحَمَّدٍ، عَنْ دَاوُدَ بْنِ صَالِحٍ الْمَدَنِيِّ، عَنْ أَبِيهِ، قَالَ سَمِعْتُ أَبَا سَعِيدٍ الْخُدْرِيَّ، يَقُولُ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " إِنَّمَا الْبَيْعُ عَنْ تَرَاضٍ " .
It was narrated from Dawud bin Salih Al Madani that his father said:
I heard Abu Sa'eed Al-Khudri say: "The Messenger of Allah (ﷺ) said: 'Transactions may only be done by mutual consent."'