The Friday prayer ( صَلاة الجُمُعَة) is a congregational prayer with two rak'as, prayed in the Friday noon instead of the noon prayer, there are two sermons said by Imam of Friday prayer who also leads the prayer. Most of the Shi'a jurists consider praying the Friday prayer, in the time of the occultation of Imam al-Mahdi (a), as an disjunctive obligation. Eid prayer (صَلاة العيد) is a prayer which Muslims perform on Eid al-Fitr and Eid al-Adha after the sunrise. According to Shi'a jurisprudence performing this prayer in jama'a (congregationally) is wajib (compulsory) during the time that an infallible Imam is present and is mustahab (recommended) during the time of occultation. In Qur'an 62, the importance of the Friday prayer is stated; also in hadith the Friday prayer is referred to as the "hajj of the poor" and leaving it causes the hypocrisy and difficulties in the one's life. Holding the Friday prayer is one of the signs of the unity of the Islamic society and it is necessary to be held congregational. Considering the political and social content of the sermons, the Friday prayer is a worship which has also a political and social importance. Eid prayer (صَلاة العيد) is a prayer which Muslims perform on Eid al-Fitr and Eid al-Adha after the sunrise. According to Shi'a jurisprudence performing this prayer in jama'a (congregationally) is wajib (compulsory) during the time that an infallible Imam is present and is mustahab (recommended) during the time of occultation. There are two whole chapters of the book Wasā'il al-Shīʿa ( وسائل الشيعة) is a reputable book of hadith in Shia Islam, compiled in the 17th century by Shaikh al-Hur al-Aamili. Shaikh Al-Hur wrote two editions of this book, ahl al-bayt which is a 30 volume long edition of it, and Al-Islamiyyah which is 20 volumes long. صَلاة الجُمُعَة وسائل الشيعة Eid prayer (صَلاة العيد Shi'a Books Friday prayer Eid al-Fitr and Eid al-Adha