Sahih al-Bukhari 2240.2
Book 35: Sales in which a Price is paid for Goods to be Delivered Later (As-Salam) · Hadith 4
Hadith text
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
Ibn Abi Najih bataate hain: (upar wali riwayat), aur kaha, "Use muqarrar naap ke liye aur muqarrar muddat ke liye pehle qeemat deni chahiye."
Sahih al-Bukhari 2240.2 · Book 35, Hadith 4