Hadith 5:709
Sufyan ibn 'Uyaynah narrated to us, from Ibrahim ibn Maysarah, from Tawus, that he was asked: "Should one buy his charity before it is tied?" And he disliked that.
حدثنا سفيان بن عيينة عن إبراهيم بن ميسرة عن طاوس سئل أيشتري صدقته قبل أن يعقل فكرهه