Calling out the Azaan in Shaam

Hazrat ‘Umar (radhiyallahu ‘anhu) once visited Jaabiyah (a place in Shaam) during the period of his Khilaafat. On his arrival, the people approached him and asked him if he would request Hazrat Bilaal (radhiyallahu ‘anhu), who was residing in Shaam, to one day call out the azaan for them. Hazrat ‘Umar (radhiyallahu ‘anhu) put their request to Hazrat Bilaal (radhiyallahu ‘anhu) who agreed to one day call out the azaan. The momentous day finally dawned and as the people heard the azaan of Hazrat Bilaal (radhiyallahu ‘anhu) they were reminded of the blessed era of Rasulullah (sallallahu ‘alaihi wasallam) and immediately began to weep. Such was their weeping out of the sadness and grief of being separated from their beloved Rasulullah (sallallahu ‘alaihi wasallam) that Hazrat Aslam (rahimahullah), the freed slave of Hazrat ‘Umar (radhiyallahu ‘anhu), said, “I never saw people crying more than they did on that day.”

(Siyar A‘laam min Nubalaa 3/222, Zarqaani 5/71)

Leaving Madinah Munawwarah after the Demise of Rasulullah (sallallahu ‘alaihi wasallam):

There are two views recorded with regards to whether or not Hazrat Bilaal (radhiyallahu ‘anhu) remained the mu’azzin of Madinah Munawwarah after the demise of Rasulullah (sallallahu ‘alaihi wasallam).

The First View:

The first view is that Hazrat Bilaal (radhiyallahu ‘anhu) did not remain the mu’azzin of Madinah Munawwarah after the demise of Rasulullah (sallallahu ‘alaihi wasallam). After the demise of Rasulullah (sallallahu ‘alaihi wasallam), he felt it difficult to remain in Madinah Munawwarah and thus went to Shaam to engage in Jihaad.

This is the preferred view of ‘Allaamah ibn Katheer (rahimahullah) (Al Bidaayah wan Nihaayah 6/61), ‘Allaamah Suyooti (rahimahullah) (Is‘aaf 751) and 'Allaamah Ibn Hibbaan (rahimahullah) (Thiqaat 1/264)

Hazrat Sa‘eed bin ‘Abdul ‘Azeez (rahimahullah) and Hazrat ibn Jaabir (rahimahullah) both narrate that Hazrat Bilaal (radhiyallahu ‘anhu) did not call out the azaan after the demise of Rasulullah (sallallahu ‘alaihi wasallam) and intended to leave Madinah Munawwarah to strive in Jihaad. When Hazrat Abu Bakr (radhiyallahu ‘anhu) came to know of this, he asked Hazrat Bilaal (radhiyallahu ‘anhu) to remain in Madinah Munawwarah to which Hazrat Bilaal (radhiyallahu ‘anhu) responded by requesting, “If you had freed me for the sake of Allah Ta‘ala then please allow me to leave.” Hazrat Abu Bakr (radhiyallahu ‘anhu) relented and allowed Hazrat Bilaal (radhiyallahu ‘anhu) to leave. Hazrat Bilaal (radhiyallahu ‘anhu) then moved to Shaam.

(Siyar A‘laam min Nubalaa 3/222)