Editing Pilgrimage (section)

===Shia===
{{Main|Arba'in pilgrimage|Arba'in|Ashura|Imam Reza}}
[[File:Arba'een_Pilgrimage_In_mehran_City,_Iran,_Shia_Muslim_24.jpg|thumb|[[Arba'een Pilgrimage|Arba'een pilgrims]] in [[Mehran, Ilam|Mehran]]]]

[[Arba'in|''Al-Arba‘īn'']] ({{langx|ar|ٱلْأَرْبَـعِـيْـن}}, "The Forty"), ''Chehelom'' ({{langx|fa|{{Nastaliq|چهلم}}}}, {{langx|ur|{{Nastaliq|چہلم}}}}, "the fortieth [day]") or ''Qirkhī'', ''Imāmīn Qirkhī'' ({{langx|az|İmamın qırxı}} ({{langx|ar|إمامین قیرخی}}), "the fortieth of Imam") is a [[Shia]] Muslim religious observance that occurs [[40 (number)|forty]] days after the [[Day of Ashura]]. It commemorates the [[martyrdom]] of [[Husayn ibn Ali]], the grandson of [[Muhammad]], which falls on the 20th or 21st day of the month of [[Safar]]. [[Imam]] Husayn ibn Ali and 72 companions were killed by [[Yazid I]]'s army in the [[Battle of Karbala]] in 61&nbsp;AH (680 [[Common Era|CE]]). Arba'een or forty days is also the usual length of mourning after the death of a family member or loved one in many Muslim traditions. Arba'een is one of the largest pilgrimage gatherings on Earth, in which up to 31 million people go to the city of [[Karbala]] in [[Iraq]].<ref>{{cite web|author=uberVU – social comments |url=http://original.antiwar.com/updates/2010/02/05/friday-46-iraqis-1-syrian-killed-168-iraqis-wounded/ |title=Friday: 46 Iraqis, 1 Syrian Killed; 169 Iraqis Wounded - Antiwar.com |publisher=Original.antiwar.com |date=5 February 2010 |access-date=30 June 2010}}</ref><ref>{{cite web|author=Aljazeera |url=http://www.aljazeera.com/news/articles/34/41-Martyrs-as-More-than-Million-People-Mark-Arbae.html |title=alJazeera Magazine – 41 Martyrs as More than Million People Mark 'Arbaeen' in Holy Karbala |publisher=Aljazeera.com |access-date=30 June 2010}}</ref><ref>{{cite web|url=https://www.voanews.com/a/blast-kills-27-in-iraqi-shiite-city-of-karbala-83628687/111949.html |title=Powerful Explosions Kill More Than 40 Shi'ite Pilgrims in Karbala |publisher=Voice of America |date=5 February 2010 |access-date=30 June 2010}}</ref><ref>{{cite news|url=http://news.smh.com.au/breaking-news-world/blast-in-crowd-kills-41-shiite-pilgrims-in-iraq-20100205-nivg.html |title=Blast in crowd kills 41 Shiite pilgrims in Iraq |publisher=News.smh.com.au |date=5 February 2010 |access-date=30 June 2010 | first=Abdelamir | last=Hanun}}</ref>

The second largest holy city in the world, [[Mashhad]], Iran, attracts more than 20 million tourists and pilgrims every year, many of whom come to pay homage to [[Imam Reza]] (the eighth [[Shi'ite]] Imam). It has been a magnet for travelers since medieval times.<ref name="Imam Reza">{{cite web |url=http://www.sacredsites.com/middle_east/iran/mashad.htm |title=Sacred Sites: Mashhad, Iran |access-date=13 March 2006 |publisher=sacredsites.com |url-status=dead |archive-url=https://web.archive.org/web/20101127181619/http://sacredsites.com/middle_east/iran/mashad.htm |archive-date=27 November 2010 }}</ref><ref name="largest" />