Sahih Bukhari - Bihar Anjuman

SAHIH BUKHARI VOLUME 3 > BOOK 34: SALES AND TRADE
Volume 3, Book 34, Number 380:
Narrated Ibn 'Umar:
Allah's Apostle forbade Muzabana; and Muzabana is the selling of fresh dates for dried old dates
by measure, and the selling of fresh grapes for dried grapes by measure.
Volume 3, Book 34, Number 381:
Narrated Ibn 'Umar:
The Prophet forbade Muzabana; and Muzabana is the selling of fresh fruit (without measuring it)
for something by measure on the basis that if that thing turns to be more than the fruit, the increase
would be for the seller of the fruit, and if it turns to be less, that would be of his lot.
Narrated Ibn 'Umar from Zaid bin Thabit that the Prophet allowed the selling of the fruits on the
trees after estimation (when they are ripe).
Volume 3, Book 34, Number 382:
Narrated Ibn Shihab:
that Malik bin Aus said, "I was in need of change for one-hundred Dinars. Talha bin 'Ubaid-Ullah
called me and we discussed the matter, and he agreed to change (my Dinars). He took the gold pieces
in his hands and fidgeted with them, and then said, "Wait till my storekeeper comes from the forest."
'Umar was listening to that and said, "By Allah! You should not separate from Talha till you get the
money from him, for Allah's Apostle said, 'The selling of gold for gold is Riba (usury) except if the ex-
change is from hand to hand and equal in amount, and similarly, the selling of wheat for wheat is
Riba (usury) unless it is from hand to hand and equal in amount, and the selling of barley for barley
is usury unless it is from hand to hand and equal in amount, and dates for dates, is usury unless it is
from hand to hand and equal in amount"
Volume 3, Book 34, Number 383:
Narrated Abu Bakra:
Allah's Apostle said, "Don't sell gold for gold unless equal in weight, nor silver for silver unless
equal in weight, but you could sell gold for silver or silver for gold as you like."
Volume 3, Book 34, Number 384:
Narrated Abu Said:
(Concerning exchange) that he heard Allah's Apostle saying, "Do not sell gold for gold unless equal
in weight, and do not sell silver unless equal in weight."
Volume 3 - 490 / 1700