According to Al-Hafiz Ibn Hajar in his book Al-Isabah (quoting Al-Waqidi), Mukhayriq was a Jewish man from the Banu Nadir tribe who accepted Islam and died as a martyr at the Battle of Uhud. He willed all his property to the Prophet ﷺ, who later gave it away as charity. His estate consisted of seven date gardens: Al-Mithab, Al-Sa’ifa (Al-Safiya), Al-Dalal, Husna, Barqa, Al-A‘waf, and Mashrabat Umm Ibrahim.
‘Umar ibn Shabbah also reported in Akhbar al-Madinah (The History of Madinah) from Ibn Shihab that the Prophet’s ﷺ charitable endowments originated from the estate of Mukhayriq, who had willed them to him before falling in the Battle of Uhud. The Prophet ﷺ said: "Mukhayriq is the forerunner among the Jews, Salman is the forerunner among the Persians, and Bilal is the forerunner among the Abyssinians."
Al-Suhayli also stated in Al-Rawd al-Unuf (6:47): "He belonged to the Banu Nadir clan. After his passing, the Prophet ﷺ turned his property into a perpetual endowment (waqf). This was the very first waqf in Islam." Al-Zuhri specifies that this bequest comprised seven gardens: Al-Mithab, Al-Safiya, Al-Dalal, Husna, Barqa, Al-A‘waf, and Mashrabat Umm Ibrahim, named as such because she resided there.
