Hisn-Ul-Muslim (Fortress of the Muslim), Invocations from the Quran and Sunnah: is a very beautiful booklet consists of many authentic Dua's (supplications) for a Muslim to supplicate on a daily basis and on special occasions. Please support the publisher, buy at: https://darussalam.pk/…/prayer-supp…/hisn-ul-muslim-hc-urdu/