Sahih al-Bukhari 2106
Sahih al-Bukhari · Book 34: Sales and Trade · The owner of a thing has to suggest a price
Narrated Anas:
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ ، حَدَّثَنَا عَبْدُ الْوَارِثِ ، عَنْ أَبِي التَّيَّاحِ ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " يَا بَنِي النَّجَّارِ ثَامِنُونِي بِحَائِطِكُمْ ". وَفِيهِ خِرَبٌ وَنَخْلٌ.
The Prophet (ﷺ) said, "O Bani Najjar! Suggest a price for your garden." Part of it was a ruin and it contained some date palms.