صَحِيحُ الْبُخَارِيِّ
Sahih al-Bukhari 2240b
Sales in which a Price is paid for Goods to be Delivered Later (As-Salam)
As-Salam for a known specified weight
حَدَّثَنَا عَلِيٌّ، حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنِي ابْنُ أَبِي نَجِيحٍ، وَقَالَ، فَلْيُسْلِفْ فِي كَيْلٍ مَعْلُومٍ إِلَى أَجَلٍ مَعْلُومٍ .
Narrated Ibn Abi Najih: as above, saying, "He should pay the price in advance for a specified measure and for a specified period."
Sahih al-Bukhari, 2240bSahihصحيح