Praise be to Allah.
For the organization that is in charge of da’wah activities to ask for monthly reports on the activities undertaken during the month to submit to the waqf supervisor does not detract from sincerity towards Allaah, and does not come under the heading of showing off if the intention of the daa’iyah is preparing the report is to demonstrate that he has done what is required of him and to allow the supervisor of the waqf to see what he has been doing and ensure that the money paid to the daa’iyahs is being spent appropriately.
In fact, this is something which is required in employment, because it encourages productivity and allows for recognition of achievement, and creates a motive for striving harder. And Allaah is the Source of strength. May Allaah send blessings and peace upon our Prophet Muhammad and his family and companions.