Your link also refers to that email I was trying to find;
"
Weisselberg forwarded Cohen’s invoice to another unidentified Trump Organization executive, “and it was approved,” prosecutors wrote.
Weisselberg then forwarded that email to another employee, writing: “Please pay from the Trust. Post to legal expenses. Put ‘retainer for the months of January and February 2017’ in the description,” according to court filings.
"
