Going by the last time we had a sudden windfall a simple "I looted/earned this stuff retaking a Karag" will be enough for the 'how did you get it' side of the equation.I am really looking forward to us explaining the money to the grey college
They will be rather more interested in which of the cavernous loopholes in the vow of poverty we intend to shove our new hoard. So long as we can justify using it for the benefit of Dame Weber rather than Magister Mathilde we should be fine.