Sahih al-Bukhari 2240
Narrated Ibn Abi Najih:
as above, saying, "He should pay the price in advance for a specified measure and for a specified period."
حَدَّثَنَا عَلِيٌّ، حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنِي ابْنُ أَبِي نَجِيحٍ، وَقَالَ،
" فَلْيُسْلِفْ فِي كَيْلٍ مَعْلُومٍ إِلَى أَجَلٍ مَعْلُومٍ ".
Classification
Sahih (Authentic)
References
Sahih al-Bukhari 2240
Sahih al-Bukhari Vol. 3, Book of Paid in Advance, Hadith 444