MUAZZIN OR MUADHDHIN
A Mu'adhdhin is a person who is appointed to make the Adhaan/ Azaan or the Call to the Prayer 5 times a day.
Mu'adhdhin (Arabic - مُؤَذّن )- a man who calls Muslims to Salah (formal prayer) from a Mosque.
- someone who announces for the before the commencement of prayer 
- It was narrated from ‘Abd al-Rahmaan ibn ‘Abd-Allaah ibn ‘Abd al-Rahmaan ibn Abi Sa’sa’ah al-Ansaari,(R) that his father told him that Abu Sa’eed al-Khudri (R) said to him: I see that you love sheep and the countryside. When you are with your sheep or in your countryside and the time for prayer comes, then raise your voice with the call to prayer, for no jinn, human or anything else hears the voice of the Mu'adhdhin as far as it reaches, but he (or it) will testify for him on the Day of Resurrection. Abu Sa’eed said: I heard that from the Messenger of Allaah ﷺ. Sahih al-Bukhaari, 584
- It was narrated that Mu’aawiyah (R) said: The Messenger of Allaah ﷺsaid: The Mu'adhdhins will have the longest necks of the people on the Day of Resurrection.” Sahih Muslim, 387.
Al-Nawawi (may Allaah have mercy on him) said:
It was said that this means that they will be the people who most expect the mercy of Allaah, because the one who is expecting something cranes his neck to see what he is longing for. Or it may refer to the abundance of what they will see of reward. Al-Nadr ibn Shameel said: When the sweat comes up to people’s faces on the Day of Resurrection, they will crane their necks lest that torment and sweat reach them. And it was said that it means that they will be masters and leaders, as the Arabs describe leaders as having long necks.
And it was said that it means they will have more followers. Ibn al-A’raabi said: it means the people who have the most good deeds to their credit. Al-Qaadi ‘Iyaad and others said: some of them narrated it as i’naaqan (instead of a’naaqan, meaning necks), meaning that they will be the swiftest to enter Paradise. Sharh Muslim, 4/91, 9211
- It was narrated that Abu Hurayrah (R) said: The Messenger of Allaah ﷺsaid: “If the people knew what there is in the call to prayer and the first row, and they had no other way but drawing lots, then they would draw lots.” Sahih al-Bukhaari, 590; Sahih Muslim, 437.
The meaning of this hadeeth is that if the people knew what there is of great and abundant reward in the call to prayer and the first row, and they could not find any way to do the adhaan and determine who would stand in the front row except by drawing lots, then they would do that; they would draw lots in order to attain its virtue.
- It was narrated from al-Bara’ ibn ‘Aazib (R) that the Prophet of Allaah ﷺsaid: “Allaah and His angels send blessings upon the front row, and the muezzin is forgiven as far as his voice reaches, and whatever hears him, animate or inanimate, confirms what he says, and he will have a reward like that of those who pray with him.” Sunan al-Nasaa’i, 646; classed as saheeh by al-Mundhiri and al-Albaani, as it says in Saheeh al-Targheeb, 235
With regard to the reward for the iqaamah, this is included in the ahaadeeth quoted above concerning the virtue of the adhaan, because the Prophet ﷺcalled the iqaamah an “adhaan”, as in the hadeeth: “Between every two calls there should be a prayer.” Sahih al-Bukhaari, 598; Sahih Muslim, 838.
- It was narrated from Ibn ‘Umar (R) that the Messenger of Allaah ﷺsaid: “Whoever gives the call to prayer for twelve years will be guaranteed Paradise, and for each day sixty hasanaat will be recorded for him by virtue of his adhaan, and thirty hasanaat by virtue of his iqaamah.” Sahih Ibn Majah, 600; classed as saheeh by al-Mundhiri and al-Albaani, as stated in Saheeh al-Targheeb, 248, Takhreej Albani in Mishkaat al Masih 648 
- Narrated by Abu Hurayrah(R): The imam is responsible and the mu'adhdhin is trusted, O Allah, guide the imams and forgive the mu'adhdhins. Sunan Abi Dawud 517 
Mue’zzins of the Prophet ﷺ
Ibn Umar(R) reported:The Messenger of Allah (ﷺ) had two Mu'adhdhins, Bilal and 'Abdullah b. Umm Maktum, who (latter) was blind. Sahih Muslim 380 
Responding to the Mu'adhdhin
- Abu Sa'id al-Khudri (R) reported: When you hear the call (to prayer), repeat what the Mu'adhdhin pronounces. Sahih Muslim 383 
- Narrated by Abdullah ibn Amr ibn al-'As(R): A man said: Messenger of Allah ﷺ, the mu'adhdhins excel us. The Messenger of Allah (ﷺ) said: Say (the same words) as they say, and when you come to the end, make a petition and that will be granted to you. 
- Sa’d b. Abi Waqqas(R) reported the Messenger of Allah ﷺas saying : If anyone says when he hears the MU’ADHDHIN : “And I testify that there is no god but Allah alone who has no partner and that Muhammad is His slave and Apostle: I am satisfied with Allah as lord, with Muhammad as apostle and with Islam as religion”, he will be forgiven. Sunan Abi Dawud 525 
Salah, Adhaan, Iqamah; Worship;