Hadith 7:155
Malik said in al-Muwatta' from al-'Ala bin 'Abdur-Rahman bin Ya'qub from his father on the authority of his grandfather that he traded with some property belonging to 'Uthman (RA) so that the profit would be divided between them. [This hadith is Mawquf (saying of a Companion) Sahih (authentic)].
وَقَالَ مَالِكٌ فِي " اَلْمُوَطَّأِ " عَنْ اَلْعَلَاءِ بْنِ عَبْدِ اَلرَّحْمَنِ بْنِ يَعْقُوبَ, عَنْ أَبِيهِ, عَنْ جَدِّهِ: { أَنَّهُ عَمِلَ فِي مَالٍ لِعُثْمَانَ عَلَى أَنَّ اَلرِّبْحَ بَيْنَهُمَا } وَهُوَ مَوْقُوفٌ صَحِيحٌ