"what he requested" is correct and usable in written English.
You can use it to refer to something that a person asked for, either spoken or written. For example: "John was able to get exactly what he requested from the store."
Klopp got some of what he requested.
So I set about securing what he requested.
It's such a long flight, about 20 hours, but I did what he requested.
He has not yet revealed how he plans to make good the difference of £9.4m between what he requested and what he has got.
By late Wednesday, dozens of anxious GOP lawmakers were ready to give President Obama almost exactly what he requested months ago: a bill to fund the government and increase the Treasury Department's borrowing power with no strings attached.
Several of these moderates will be pressing to have the tax cut emerging from a House-Senate conference committee closer to the lower Senate version than to the House version, which gave Mr. Bush what he requested.
He gets cooking oil once a month, but only about half of what he requests.
"It is in our interest that Judge Guzmán have all the tools so that he can carry out his duty, and if he wants the F.B.I. or some other entity to help him so that justice can be done, then there should be no doubt that what he requests will be granted".
Sisi made clear what he requests of the Egyptian population, "I want you Egyptians to delegate the army and the police to confront violence in a suitable way.
He stood aside as the Senate voted to increase spending on education beyond what he had requested in his budget.
However, in approving a compromise bill, the committee did not give President Bush precisely what he had requested in September.
