Praise be to God who taught with the pen, taught man what he did not know, and may God’s blessings and peace be upon our master Muhammad and his family and companions, and many peace be upon him. And after: Dear beloved visitors of this application, may God’s peace and mercy be upon you. Praise be to God who has provided us with a platform for knowledge through which we communicate with those interested. Those who are preoccupied with the issues of Islam of knowledge are students of knowledge, Muslims and non-Muslims. We ask God Almighty to make this application an ongoing charity until the Day of Judgment for all who have financed, designed, and managed it. I also ask God Almighty to make its content useful knowledge, with angels spreading their wings to whoever wrote it, whoever read it, and whoever followed or followed it. He added goodness to him, and that he blesses this platform and never closes the door of knowledge within it, but rather nurtures it and places its owner on a straight path. He is the guardian of that and the one who is capable of it.