Commercial Transactions (Kitab Al-Buyu)
كتاب البيوع
Read the English translation first, with the original Arabic directly underneath.
Regarding A Man Who Does Trade With Another Man's Wealth Without His Permission
Narrated Abdullah ibn Umar:
I used to sell camels at al-Baqi for dinars and take dirhams for them, and sell for dirhams and take dinars for them. I would take these for these and give these for these. I went to the Messenger of Allah (ﷺ) who was in the house of Hafsah. I said: Messenger of Allah , take it easy, I shall ask you (a question): I sell camels at al-Baqi'. I sell (them) for dinars and take dirhams and I sell for dirhams and take dinars. I take these for these, and give these for these. The Messenger of Allah (ﷺ) then said: There is no harm in taking them at the current rate so long as you do not separate leaving something to be settled.
لاَ بَأْسَ أَنْ تَأْخُذَهَا بِسَعْرِ يَوْمِهَا مَا لَمْ تَفْتَرِقَا وَبَيْنَكُمَا شَىْءٌ