documentation
noun [ U ]
uk/ˌdɒkjəmenˈteɪʃən/ usofficial or legal documents that are needed in order to prove something:
provide/produce documentation Many lenders are now requiring borrowers to provide documentation of their income.
additional/further/supporting documentation
Amid rising default anxiety, loans are getting harder to obtain, with tighter documentation requirements.
the activity of recording facts relating to a particular subject:
Auditors raised questions about the documentation of costs.
instructions that tell you how to use a piece of equipment:
technical documentation