Sahih Muslim
The Book of Gifts (Kitab Al-Hibat)
Book Number: 012 / Hadith Number: 3981
This hadith is narrated on the authority of Jabir through other chains of transmitters, but (with this addition of words) that thehadith transmitted on the authority of Ayyub (these words are found):" The Helpers (Ansar) conferred the benefit of 'Umra, upon the Emigrants (Muhajirin), whereupon Allah's Messenger (may peace be upon him) said: Keep your property to yourselves.