Narrator
Ibn Abi Najih
Sahih al-Bukhari #2239.2Sales in which a Price is paid for Goods to be Delivered Later (As-Salam)
Narrated Ibn Abi Najih: as above, mentioning only specific measure
Sahih al-Bukhari #2240.2Sales in which a Price is paid for Goods to be Delivered Later (As-Salam)
Narrated Ibn Abi Najih: as above, saying, "He should pay the price in advance for a specified measure and for a specified period