Muhammad bin Abdullah bin Abd al-Hakam says: I heard Imam al-Shafi'i (may Allah have mercy on him) say: Imam Malik and Imam Abu Yusuf gathered in the presence of the Commander of the Believers. The two of them began to discuss endowments and what people withhold. Ya'qub said: This is invalid; Shurayh said: Muhammad (peace and blessings be upon him) came to break (abolish) the hubs. Malik said: Muhammad (peace and blessings be upon him) came to break (abolish) the bahirah and sa'ibah that people used to withhold. As for endowing, this is the endowment of Umar bin al-Khattab (may Allah be pleased with him): he asked the Prophet (peace and blessings be upon him) for permission, and he (peace and blessings be upon him) said: "Retain the original property and dedicate its fruit in the path of Allah." And this is the endowment of al-Zubayr. The caliph was impressed, and Ya'qub was left (without a reply).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الوقف / 11912