Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
malik:31-49Yaḥyá > Mālik > Abū al-Zinād > Saʿīd b. al-Musayyab And Sulaymān b. Yasār Yanhayān

Yahya related to me from Malik that Abu'z-Zinad heard Sa'id ibn al-Musayyab andSulayman ibn Yasar forbid a man to sell wheat for gold on delayed terms and then to buy dried dates with the gold before he had taken delivery of the gold.  

مالك:٣١-٤٩حَدَّثَنِي يَحْيَى عَنْ مَالِكٍ عَنْ أَبِي الزِّنَادِ أَنَّهُ سَمِعَ سَعِيدَ بْنَ الْمُسَيَّبِ وَسُلَيْمَانَ بْنَ يَسَارٍ يَنْهَيَانِ

أَنْ يَبِيعَ الرَّجُلُ حِنْطَةً بِذَهَبٍ إِلَى أَجَلٍ ثُمَّ يَشْتَرِيَ بِالذَّهَبِ تَمْرًا قَبْلَ أَنْ يَقْبِضَ الذَّهَبَ