Sahih Muslim
The Book of Transactions (Kitab Al-Buyu)
Book Number: 010 / Hadith Number: 3623
Ibn 'Umar (Allah be pleased with them) reported Allah's Messenger (may peace be upon him) as saying: Do not go out to meet merchandise in the way, (wait) until it is brought into the market. This hadith has been reported on the authority of Ibn Numair but with a slight change of words.