Narrated 'Uthman bin Abul-'Aas (RA): He said, "O Messenger of Allah, appointment as the Imam (leader) of my people (in prayers). He ( صلی اللہ علیہ وسلم ) said: "You are their Imam, but you should follow (observe the strength of) the weakest among them and appoint a Mu'adhdhin who does not charge for the call of Adhan." [Reported by al-Khamsah, at-Tirmidhi graded it Hasan (good) and al-Hakim graded it Sahih (authentic)] .

Narrated Malik bin al-Huwairith (RA): The Prophet ( صلی اللہ علیہ وسلم ) said to us, "When the time of Salat (prayer) comes, one of you should announce the Adhan." [Reported by as-Sab'ah] .

Narrated Jabir (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said to Bilal, "When you announce the Adhan, utter deliberately and when you pronounce the Iqamah utter quickly, and leave between your Adhan and your Iqamah time for one who is eating to finish his food." [Reported by at-Tirmidhi who graded it Da'if (weak)] . He also reported from Abu Hurairah (RA): The Prophet ( صلی اللہ علیہ وسلم ) said: "No one should announce Adhan except the one who has performed the ablution". [Reported by at-Tirmidhi who graded it Da'if (weak)] . So the narration is weak whether Marfu' [reaching back to the Prophet ( صلی اللہ علیہ وسلم )] or Mawquf (saying of a Companion). He also reported from Ziyad bin al-Harith (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "The one who announces the Adhan should also pronounce the Iqamah." [Reported by at-Tirmidhi who graded it Da'if (weak)] . Narrated 'Abdullah bin Zaid in another narration of the Hadith reported by Abu Dawud: I saw it, i.e. the Adhan (in a vision) and I wanted to announce it. Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "You pronounce the Iqamah." [This Hadith is also Da'if (weak)] .

Narrated Abu Hurairah (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "The Mu'adhdhin has more right to [determine the time to] announce the Adhan and the Imam has more right to [determine when to] pronounce the Iqamah." [Reported by Ibn 'Adi who graded it Da'if (weak)] . al-Baihaqi has reported a similar narration from the saying of 'Ali (RA).

Narrated Anas bin Malik (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "A supplication made between the Adhan and Iqamah is not rejected." [Reported by an-Nasa'i and Ibn Khuzaimah graded it Sahih (authentic)] .

Narrated Jabir (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "If anyone says when he hears the Adhan: 'O Allah! Lord of this perfect call and of the regular prayer which is going to be established! Kindly give Muhammad ( صلی اللہ علیہ وسلم ) the right of intercession and superiority, and send him (on the Day of Judgement) to the best and highest place in Paradise which You promised him', he will be assured of my intercession on the Day of Judgement." [Reported by al-Arba'ah] .