ما هو عجب الذنب؟

"ʿAjb adh-Dhanab" (the tailbone or coccyx) is the small bone at the base of the spine. It is the first part of a human to be created and remains to be used for the reconstruction of creation on the Day of Resurrection. It was mentioned in the noble Hadith: "There is nothing of the human being that does not decay except one bone, and that is ʿAjb adh-Dhanab. From it, creation will be reassembled on the Day of Resurrection."