Volume 6, Book 60, Number 407:
Narrated Umar:
The properties of Bam An-Nadir were among the booty that Allah gave to His Apostle such Booty
were not obtained by any expedition on the part of Muslims, neither with cavalry, nor with camelry.
So those properties were for Allah’s Apostle only, and he used to provide thereof the yearly expendit –
ure for his wives, and dedicate the rest of its revenues for purchasing arms and horses as war mater –
ial to be used in Allah’s Cause.