The mothers mosque is a book on the Maliki jurisprudence by Ibn al -Hajib, the intention of its author, from his status, collecting the issues of jurisprudence and its branches summarized by the sayings of the scholars of the Maliki school of thought and their famous books, and in this he says: When I was operating in the status of my book I was collecting the mothers, then I all included what these mothers included in Summary words, then I put it in the book until complete