Sahih al-Bukhari 2240.2

Arabic

حَدَّثَنَا عَلِيٌّ، حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنِي ابْنُ أَبِي نَجِيحٍ، وَقَالَ، ‏ "‏ فَلْيُسْلِفْ فِي كَيْلٍ مَعْلُومٍ إِلَى أَجَلٍ مَعْلُومٍ ‏"‏‏.‏

Translation

Narrated Ibn Abi Najih:as above, saying, "He should pay the price in advance for a specified measure and for a specified period

→ Narrated by Ibn Abi Najih

Authenticity

Sahih

Reference