Uthman ibn 'Affaan · The Book on Business

"When the Prophet (ﷺ) arrived in Al-Madinah, they were paying in advance for fruits. So he said: 'Whoever pays in advance, then let him pay in advance for known measurements (of dates), and known weights for a specified period of time.'" He said: There are narrations on this topic from Ibn Abi Awfa and 'Abdur-Rahman bin Abza. The Hadith of Ibn 'Abbas is a Hasan Sahih Hadith. This is acted upon according to the people of knowledge among the Companions…