Sunan Ibn Majah, Volume 3, Book 12, Hadith 2192 (DarusSalam) ⓘ
It was narrated from 'Amr bin Shu'aib, from his father, from his grandfather that : the Prophet forbade the deal involving earnest money.
حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا مَالِكُ بْنُ أَنَسٍ، قَالَ بَلَغَنِي عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ نَهَى عَنْ بَيْعِ الْعُرْبَانِ .
also referenced under: Hadith 2192 (Reference) & Book 12, Hadith 2276 (In-Book)