# Chapters Preface Major Muslim Crypto Asset Benefits of Dahab Alealam DAHAB DEX for swapping halal crypto DHB token for the DAHAB ecosystem \- Service token for Dahab DEX \ \- Loyalty Rewards \ \- Service token for the DAHAB App DAHAB App Features: \- Buy and sell cryptocurrency\ \- Pay for daily purchases and services \ \- Make fund transfers \ \- Save money in your DAHAB account \ \- Invest for Longer Term Halal investments in Dahab 1\. Don't invest in explicitly haram things \ 2\. Avoid usury (unreasonable interest)\ 3\. Avoid gharrar (uncertainty) \ 4\. Avoid maysir (gambling) \ \ The importance of halal earnings in Islam\ \ Exchange listing \ \ Terms & Conditions --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://dahabcrypto.gitbook.io/dahabalealam/chapters.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.