You are receiving „Bürgergeld“? Then you can apply for financial support with the initial equipment – “Erstausstattung” in German. Therefore you have to apply.
The application can be handed in informal. That means, you can write on a blank sheet of paper. As a headline you can set „Antrag zur Erstausstattung“.
You should list everything you lack of.
However, the following list you can help you with the decision what to list.