Narrated Ibn 'Abbas (RA):

Allah's Messenger (ﷺ) forbade the selling of a fruit till it becomes ripe, or the selling of fur which is (still) on the back (of an animal) or milk which is (still) in the udder. [Reported by at-Tabarani in al-Awsat. ad-Daraqutni also reported it].

وَعَنِ اِبْنِ عَبَّاسٍ ‏-رَضِيَ اَللَّهُ عَنْهُمَا‏- قَالَ: { نَهَى رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-أَنْ تُبَاعَ ثَمَرَةٌ حَتَّى تُطْعَمَ, وَلَا يُبَاعَ صُوفٌ عَلَى ظَهْرٍ, وَلَا لَبَنٌ فِي ضَرْعٍ } رَوَاهُ اَلطَّبَرَانِيُّ فِي

اَلْأَوْسَطِ

وَاَلدَّارَقُطْنِيُّ [1]‏ .‏