Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
muslim:378a[Chain 1] Khalaf b. Hishām > Ḥammād b. Zayd [Chain 2] Yaḥyá b. Yaḥyá > Ismāʿīl Ibn ʿUlayyah > Khālid al-Ḥadhhāʾ > Abū Qilābah > Anas > Umir Bilāl

Bilal was commanded (by the Messenger of Allah) to repeat (the phrases of) Adhan twice and once in Iqama. The narrator said: I made a mention of it before Ayyub who said: Except for saying: Qamat-is-Salat [the time for prayer has come].  

مسلم:٣٧٨aحَدَّثَنَا خَلَفُ بْنُ هِشَامٍ حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ ح وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى أَخْبَرَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ جَمِيعًا عَنْ خَالِدٍ الْحَذَّاءِ عَنْ أَبِي قِلاَبَةَ عَنْ أَنَسٍ قَالَ أُمِرَ بِلاَلٌ

أَنْ يَشْفَعَ الأَذَانَ وَيُوتِرَ الإِقَامَةَ زَادَ يَحْيَى فِي حَدِيثِهِ عَنِ ابْنِ عُلَيَّةَ فَحَدَّثْتُ بِهِ أَيُّوبَ فَقَالَ إِلاَّ الإِقَامَةَ  


See similar narrations below:

Collected by Abū Dāwūd, Aḥmad
abudawud:508[Chain 1] Sulaymān b. Ḥarb And ʿAbd al-Raḥman b. al-Mubārak > Ḥammād > Simāk b. ʿAṭiyyah [Chain 2] Mūsá b. Ismāʿīl > Wuhayb > Ayyūb > Abū Qilābah > Anas > Umir Bilāl

Anas reported; Bilal was commanded to pronounce Adhan in double pairs and IQAMAH in single pairs. Hammam added in his version; “except IQAMAH”.  

أبو داود:٥٠٨حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ وَعَبْدُ الرَّحْمَنِ بْنُ الْمُبَارَكِ قَالاَ حَدَّثَنَا حَمَّادٌ عَنْ سِمَاكِ بْنِ عَطِيَّةَ ح وَحَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ حَدَّثَنَا وُهَيْبٌ جَمِيعًا عَنْ أَيُّوبَ عَنْ أَبِي قِلاَبَةَ عَنْ أَنَسٍ قَالَ أُمِرَ بِلاَلٌ

أَنْ يَشْفَعَ الأَذَانَ وَيُوتِرَ الإِقَامَةَ زَادَ حَمَّادٌ فِي حَدِيثِهِ إِلاَّ الإِقَامَةَ  

ahmad:12971Ismāʿīl > Khālid > Abū Qilābah > Anas Umir Bilāl > Yashfaʿ al-Adhān And Yūtir al-Iqāmah Faḥaddatht Bih Ayyūb

[Machine] "To pronounce the call to prayer and establish the congregational prayer, I spoke to Ayoub about it, and he said nothing but the congregational prayer."  

أحمد:١٢٩٧١حَدَّثَنَا إِسْمَاعِيلُ أَخْبَرَنَا خَالِدٌ عَنْ أَبِي قِلَابَةَ قَالَ أَنَسٌ أُمِرَ بِلَالٌ

أَنْ يَشْفَعَ الْأَذَانَ وَيُوتِرَ الْإِقَامَةَ فَحَدَّثْتُ بِهِ أَيُّوبَ فَقَالَ إِلَّا الْإِقَامَةَ