Friday
A holy day for rest and worship is Friday for the Muslims, Saturday for the Jews and Sunday for the Christians
Muslims must pray 5 times a day, mostly congregational. However, their holy/gathering day is Friday.
Answer: Every single day.
Mecca and Jerusalem are holy cities for Muslims.
Toward Mecca where the Holy Land of Islam is.
There is no holy river for Muslims or for Islam religion.
Muslim are obligated to pray 5 times EVERY DAY. It is a pillar in Islam! there holy day is Friday
The holy Quaran is there for a reason. It is a guidline for all Muslims and helps them succeed, both in life and on the Day of Judgment.
Muslims do not have holy day weekly. but i think what your asking is the Friday prayer, just like christens go to church on Sunday, without any invitation's, Muslims go to on Friday, Friday was the original day for christens as well, but they changed it to Sunday.
The city of Meccah.
Muslims need to wait in their grave until the Day of Resurrection. If he is a good doer, that likes to read The Holy Book Of Islam, The Holy Book will accompany him and will say that he has read The Holy Book of Islam in the day of judgement. if he is a bad doer, he will be with snakes, devils, and other creatures as his friend in his grave.
Jerusalem is considered holy by Muslims, Jews, and Christians.