لَهُ الرَّجُلُ يَشْتَرِي مِنَ الرَّجُلِ الْمَتَاعَ ثُمَّ يَدَعُهُ عِنْدَهُ يَقُولُ حَتَّى آتِيَكَ بِثَمَنِهِ فَقَالَ إِنْ جَاءَ فِيمَا بَيْنَهُ وَ بَيْنَ ثَلَاثَةِ أَيَّامٍ وَ إِلَّا فَلَا بَيْعَ لَهُ[1].
I asked him about a man who buys merchandise from another man and then leaves it with him, saying, "I will bring you its price." Imam (as) said: "If he brings the payment within three days, then the sale is valid; otherwise, there is no sale for him."