Abdur Rahman bin al-Qasim عبد الرحمن بن القاسم بن محمد بن أبي بكر · The Chapters on Business Transactions

"I said to 'Abdullah bin 'Umar: 'Can I pay in advance for a date palm before it bears fruit?' He said: 'No.' I said: 'Why not?' He said: 'A man paid in advance for a grove of trees during the time of the Messenger of Allah (ﷺ), before they had produced any fruit, and they did not bear anything that year. The purchaser said: 'They belong to me until they produce but the seller said: 'I only sold the trees…

the Prophet (ﷺ) asked a man to give as a loan a young camel and said: “When the camels of the Sadaqah come, we will pay you back.” When the camels came, he said: " O Abu Rafi', pay this man back for his Young camel." But all I could find was a seven-year-old camel or that which is better. I told the Prophet (ﷺ) and he said: "Give it to him, for the best of People are those who…

"I heard 'Irbad bin Sariyah say: 'I was with the Prophet (ﷺ) and a Bedouin said: "Pay me back for my young camel, and he gave him an older (i.e., better) camel." He said: 'O Messenger of Allah! It is older (i.e., better) than my camel.' The Messenger of Allah (ﷺ) said: 'The best of people are those who are best in repaying."'