Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrates that I heard the Messenger of Allah (peace and blessings be upon him) say: "When you hear the muezzin (calling the adhan), then say the same words as he says, then send blessings upon me, for whoever sends blessings upon me once, Allah sends ten mercies upon him. Then ask Allah to grant me al-Wasilah, for it is a rank in Paradise which is reserved for one of Allah’s servants. So whoever asks al-Wasilah for me, my intercession will become obligatory for him." These are the words of the narration of Haywah. In the narration of Sa'id bin Abi Ayyub, there is an addition: "And I hope that I will be that fortunate servant."

It is narrated from Sayyiduna Sahl bin Sa’d (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said:“Two supplications are not rejected, or they are very rarely rejected: the supplication made at the time of the call to prayer (adhan), and at the time of battle when they are confronting each other.”

Sayyiduna Jabir bin Abdullah (may Allah be pleased with both of them) narrates that the Prophet Muhammad (peace and blessings be upon him) said: "Whoever, after hearing the adhan, supplicates: «‏‏‏‏اَللّٰهُمَّ رَبَّ هَذِهِ الدَّعْوَةِ التَّامَّةِ، وَالصَّلاَةِ القَائِمَةِ، آتِ مُحَمَّدًا الوَسِيلَةَ وَالفَضِيلَةَ، وَابْعَثْهُ مَقَامًا مَحْمُودًا الَّذِي وَعَدْتَهُ» ‏‏‏‏ . 'O Allah, Lord of this perfect call and the established prayer, grant Muhammad (peace be upon him) the means and the elevated rank, and raise him to the praiseworthy station which You have promised him,' then my intercession will be obligatory for that person on the Day of Resurrection."

Sayyiduna Sa’d bin Abi Waqqas (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said:“Whoever, upon hearing the voice of the muezzin, says these words: «‏‏‏‏أَنَا أَشْهَدُ أَنْ لَا إِلَهَ إِلَّا اللهُ، وَحْدَهُ لَا شَرِيكَ لَهُ، وَأَنَّ مُحَمَّدًا عَبْدُهُ وَرَسُولُهُ، رَضِيتُ بِاللَّهِ رَبًّا، وَبِمُحَمَّدٍ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَسُولًا وَ بِالْإِسْلَامِ دِينًا،» ‏‏‏‏ . ‘And I also bear witness that there is no deity worthy of worship except Allah, He is alone and has no partner, and indeed Muhammad (peace and blessings be upon him) is His servant and Messenger. I am pleased with Allah as my Lord, with Muhammad (peace and blessings be upon him) as Messenger, and with Islam as my religion.’ — his sins will be forgiven.”

It is narrated from Sayyiduna Sa’d bin Abi Waqqas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said:“Whoever hears the mu’adhdhin giving the adhan, then turns towards him and says: «‏‏‏‏أَشْهَدُ أَنْ لَا إِلَهَ إِلَّا اللهُ، وَحْدَهُ لَا شَرِيكَ لَهُ، وَأَنَّ مُحَمَّدًا رَسُولُهُ اللہ، رَضِيتُ بِاللَّهِ رَبًّا، وَبِمُحَمَّدٍ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَسُولًا وَ بِالْإِسْلَامِ دِينًا» ‏‏‏‏ ‘I bear witness that there is no deity except Allah, He is alone, He has no partner, and indeed Muhammad (peace and blessings of Allah be upon him) is the Messenger of Allah. I am pleased with Allah as my Lord, with Islam as my religion, and with Muhammad (peace and blessings of Allah be upon him) as a Messenger,’ then his past sins will be forgiven.”

It is narrated from Sayyiduna Uthman bin Abi Al-Aas (may Allah be pleased with him) that he says: I submitted, "O Messenger of Allah, teach me the Noble Qur'an and appoint me as the imam of my people." He says: Therefore, the Prophet (peace and blessings be upon him) said, "(You are their imam) lead the congregation considering the weakest and most vulnerable among them, and appoint as the mu'adhdhin (caller to prayer) someone who does not take wages for his adhan."

It is also narrated from Yazid Abu Al-Ala in a similar manner as the above narration, but in his narration, the words "teach me the Noble Qur'an" are not present, and he says that the Prophet (peace and blessings be upon him) said, "(Rather) you are their imam. And recite considering the weakest among them."

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates from the Noble Prophet (peace and blessings of Allah be upon him) that he (peace be upon him) said: "Sayyiduna Bilal (may Allah be pleased with him) gives the call to prayer at night, so you should continue eating and drinking (for suhoor) until Sayyiduna Ibn Umm Maktum (may Allah be pleased with him) gives the call to prayer (then you should stop)." Ubaidullah says that I heard Qasim narrate this hadith from Sayyidah Aisha (may Allah be pleased with her), he says that the interval between the two calls to prayer was such that one would descend (after giving the adhan) and the other would ascend (to give the adhan).

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "The supplication made between the Adhan and the Iqamah is not rejected, so you should supplicate."

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates from the Noble Prophet (peace and blessings be upon him) that he (peace and blessings be upon him) said: "The supplication made between the Adhan and the Iqamah is not rejected."

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "The supplication made between the Adhan and the Iqamah is not rejected, so you should supplicate."