once a week ranges from 35% in Lebanon to 65% in Jordan. Sub-Saharan African Muslim communities tend to have a high rates of mosque attendance, and ranges from 65% in Senegal to nearly 100% in Ghana. In South Asia, home to the largest Muslim communities in the world, mosque attendance at least once a week ranges from 53% in Bangladesh to 61% in Afghanistan. Surveys conducted in 1994 and in 1996 observed a decrease in religiosity among Muslims in Belgium based on lowering mosque participation, less frequent prayer, dropping importance attached to a religious education, etc. This decrease in religiosity was more visible in younger Muslims. A study published in 2006, found that 35% of the Muslim youth in Germany attend religious services regularly. In 2009, 24% of Muslims in the Netherlands said they attended mosque once a week according to a survey. According to a survey published in 2010, 20% of the French Muslims claimed to go regularly to the mosque for the Friday service. Data from 2017 shows that American Muslim women and American Muslim men attend the mosque at similar rates (45% for men and 35% for women). Conditions A valid Jum'ah is said to fulfill certain conditions: Friday prayer must be prayed in congregation. There are at least two persons present. This is based on the Hadith of Tariq Ibn Shihab who reported that Muhammad said, “Al-Jumuah is an obligation (wajib) upon every Muslim in the community.” (An-Nasai). Scholars differ on how many people are required for performing Jumuah Prayer. The view believed to be the most correct is that Jumuah Prayer is valid if there are at least two people present. This is based on the Hadith in which the Prophet is reported to have said, “Two or more constitute a congregation.” (Ibn Majah). Imam Ash-Shawkani states, “The other Prayers are considered to be made in congregation if there are two people present. The same applies to Friday Prayer, unless there is a reason for it to be different. There is no evidence to show that [for the purpose of the congregation] its number should be larger than that for the other Prayers.” According to a Shiite law, only one Friday prayer may be prayed in a radius of 3 miles (720 yards). If two prayers are held within this distance, the latter is made null and void. There must be two sermons delivered by