Authentic
Muttafaq ‘alayh (Bukhari and Muslim) Sahih Muslim 1604a
‘Abdullāh ibn ‘Abbās (may Allah be pleased with him) reported that when the Messenger of Allah (may Allah's peace and blessings be upon him) came to Madīnah, they used to pay one, two or three years in advance for fruits, so he said: "Whoever pays…
مَنْ أَسْلَفَ فِي تَمْرٍ فَلْيُسْلِفْ فِي كَيْلٍ مَعْلُومٍ وَوَزْنٍ مَعْلُومٍ إِلَى أَجَلٍ مَعْلُومٍ" .
Narrated by Ibn ‘Abbās + 12 other versions Explained
