Mishkat al-Masabih
Mishkat al-Masabih 2883
عَنِ ابْنِ عَبَّاسٍ قَالَ: قَدِمَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الْمَدِينَةَ وَهُمْ يُسْلِفُونَ فِي الثِّمَارِ السَّنَةَ وَالسَّنَتَيْنِ وَالثَّلَاثِ فَقَالَ: «مَنْ سلف فِي شَيْءٍ فَلْيُسْلِفْ فِي كَيْلٍ مَعْلُومٍ وَوَزْنٍ مَعْلُوم إِلَى أجل مَعْلُوم»
Unreviewed translation. All hadiths in this collection are available in five languages. Titles and introductions may remain in Arabic.
Ibn ‘Abbas reported: When the Messenger of Allah (Allah bless him and give him peace) came to Madinah, people were paying in advance for fruit one, two, and three years ahead. He said: ‘Whoever pays in advance for anything must do so for a specified measure, a specified weight, and a specified term.’ It is agreed upon. Its listed grading is agreed upon (al-Albani).