Sunan an-Nasa'i, Book 44, Hadith 96 (In-Book) ⓘ
It was narrated from Bashir bin yasar that the Companions of the Messenger of Allah said: "The Messenger of Allah granted a concession allowing 'Araya sales by estimate."
أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنْ يَحْيَى، عَنْ بُشَيْرِ بْنِ يَسَارٍ، عَنْ أَصْحَابِ، رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّهُمْ قَالُوا رَخَّصَ رَسُولُ اللَّهِ صلى الله عليه وسلم فِي بَيْعِ الْعَرَايَا بِخَرْصِهَا .
also referenced under: Hadith 4544 (Reference) & Volume 5, Book 44, Hadith 4548 (DarusSalam)