وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ دَاوُدَ بْنِ الْحُصَيْنِ، عَنْ أَبِي سُفْيَانَ، مَوْلَى ابْنِ أَبِي أَحْمَدَ عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَرْخَصَ فِي بَيْعِ الْعَرَايَا بِخَرْصِهَا فِيمَا دُونَ خَمْسَةِ أَوْسُقٍ أَوْ فِي خَمْسَةِ أَوْسُقٍ ‏.‏ يَشُكُّ دَاوُدُ قَالَ خَمْسَةِ أَوْسُقٍ أَوْ دُونَ خَمْسَةِ أَوْسُقٍ ‏.‏

Yahya related to me from Malik fromDa'ud ibn al-Husayn from Abu Sufyan, the mawla of Ibn Abi Ahmad, fromAbu Hurayra that the Messenger of Allah, may Allah bless him and granthim peace, allowed the produce of an ariya to be bartered for anestimation of what the produce would be when the crop was less thanfive awsuq or equal to five awsuq. Da'ud wasn't sure whether he saidfive awsuq or less than five. Malik said, ''Ariyas can besold for an estimation of what amount of dried dates will be produced.The crop is examined and estimated while still on the palm. This isallowed because it comes into the category of delegation ofresponsibility, handing over rights, and involving a partner. Had itbeen like a form of sale, no one would have made someone else apartner in the produce until it was ready nor would he have renouncedhis right to any of it or put someone in charge of it until the buyerhad taken possession." Translation Not Available

Book Ref: Muwatta Imam Malik Book 31 Hadith 1307
Web Ref:  Muwatta Imam Malik Book 31 Hadith 14