Eid al-Adha in the context of "Islam"

A musalla (Arabic: مصلى, romanized: muṣallā) is a space that is not a mosque, mainly used for prayer in Islam. The word is derived from the verb صلى (ṣallā), meaning "to pray". One use is for the twice-yearly Eid prayers (ʿĪd al-Fiṭr and ʿĪd al-Aḍḥā) and sometimes for funeral prayers as per the Sunnah.

“Musalla” may also refer to a room, structure, or place for performing salah (canonical prayers), and this is also translated as a “prayer hall” when smaller than a mosque. It is often used for conducting the five mandatory daily prayers, or other prayers in (or without) a small congregation, but not for large congregational worship such as the Friday Prayers or the Eid Prayers (the latter is done in congregational mosques if there is no available musalla, in the original sense of an open space). Such musallas are usually present in airports, malls, universities, and other public places in Muslim-majority countries, as well as in some non-Muslim countries for the use of Muslims. A musalla will usually not contain a minbar.

There are two main holidays in Islam that are celebrated by Muslims worldwide: Eid al-Fitr and Eid al-Adha. The timing of both holidays are set by the lunar Islamic calendar, which is based upon the cycle of the moon, and so is different from the more common, European, solar-based Gregorian calendar. Every year, the Gregorian dates of the Islamic holidays change.

Both Eid al-Fitr and Eid al-Adha follow a period of 10 holy days or nights: the last 10 nights of Ramadan for Eid al-Fitr, and the first 10 days of Dhu al-Hijjah for Eid al-Adha. The Night of Power (Arabic: لیلة القدر, romanized: Laylat al-Qadr), one of the last 10 nights of Ramadan, is the holiest night of the year. Conversely, the Day of Arafah, the day before Eid al-Adha, is the holiest day of the Islamic year.

Eid al-Fitr (Arabic: عيد الفطر, romanized: ʿĪd al-Fiṭr, lit. 'Festival of Breaking the Fast') is the first of the two main festivals in Islam, the other being Eid al-Adha. It falls on the first day of Shawwal, the tenth month of the Islamic calendar. Eid al-Fitr is celebrated by Muslims worldwide as it marks the end of the month-long, dawn-to-dusk fasting (sawm) during Ramadan. The holiday is known under various other names in different languages and countries around the world.

Eid al-Fitr has a particular salah that consists of two rakats generally performed in an open field or large hall. It may only be performed in congregation (jamāʿat) and features six additional Takbirs (raising of the hands to the ears whilst reciting the Takbir, saying "Allāhu ʾAkbar", meaning "God is the greatest"). In the Hanafi school of Sunni Islam, there are three Takbirs at the start of the first rakat and three just before rukūʿ in the second rakat. Other Sunni schools usually have 12 Takbirs, similarly split in groups of seven and five. In Shia Islam, the salat has six Takbirs in the first rakat at the end of Tilawa, before rukūʿ, and five in the second. Depending on the juristic opinion of the locality, this salat is either farḍ (فرض, obligatory) or mustaḥabb (strongly recommended). After the salat, Muslims celebrate the Eid al-Fitr in various ways with food being a central theme, which also gives the holiday the nickname "Sweet Eid" or "Sugar Feast".

Dhu al-Hijjah (also Dhu al-Hijja Arabic: ذُو ٱلْحِجَّة, romanized: Ḏū al-Ḥijja IPA: [ðul ħid͡ʒːa]) is the twelfth and final month in the Islamic calendar. Being one of the four sacred months during which war is forbidden, it is the month in which the Ḥajj (Arabic: حج, lit. 'pilgrimage') takes place as well as Eid al-Adha (Arabic: عيد الأضحى, lit. 'The Festival of the Sacrifice').

The Arabic name of the month, Dhu al-Hijjah, means "Possessor of the Pilgrimage" or "The Month of the Pilgrimage". During this month, Muslim pilgrims from all around the world congregate at Mecca to visit the Kaaba. The Hajj rites begin on the eighth day and continue for four or five days. The Day of Arafah takes place on the ninth of the month. Eid al-Adha, the "Festival of the Sacrifice", begins on the tenth day and ends on the thirteenth day.

Khutbah (Arabic: خُطْبَة, khuṭba; Persian: خطبه, khotbeh; Turkish: hutbe) serves as the primary formal occasion for public preaching in the Islamic tradition.

Such sermons occur regularly, as prescribed by the teachings of all legal schools. The Islamic tradition can be formally observed at the congregation prayer on Friday. In addition, similar sermons are called for on the two festival days (Eid al-Fitr and Eid al-Adha) and after Solar and Lunar Eclipse prayer, as well as after the Rain prayer.