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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī

ذِكْرُ الْخَبَرِ الدَّالِّ عَلَى أَنَّ النَّبِيَّ ﷺ هُوَ الْآمِرُ لِبِلَالٍ تَثْنِيَةَ الْأَذَانِ وَإِفْرَادَ الْإِقَامَةِ لَا غَيْرُهُ

ibnhibban:1678 – Muḥammad b. Isḥāq b. Khuzaymah > Muḥammad b. ʿAbd al-Aʿlá > Muʿtamir b. Sulaymān > Khālid al-Ḥadhhāʾ > Abū Qilābah > Anas

"They looked for something by means of which they could call out informing of (the time of) the prayer. Then Bilal was commanded to say the phrases of the Adhan twice and the phrases of the Iqamah once." (Using translation from Ibn Mājah 729)   

ابن حبّان:١٦٧٨ – أَخْبَرَنَا مُحَمَّدُ بْنُ إِسْحَاقَ بْنِ خُزَيْمَةَ قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الْأَعْلَى قَالَ حَدَّثَنَا مُعْتَمِرُ بْنُ سُلَيْمَانَ قَالَ سَمِعْتُ خَالِدًا الْحَذَّاءَ عَنْ أَبِي قِلَابَةَ عَنْ أَنَسٍ

«أَنَّهُ حَدَّثَ أَنَّهُمُ الْتَمَسُوا شَيْئًا يُؤَذِّنُونَ بِهِ عَلَمًا لِلصَّلَاةِ فَأُمِرَ بِلَالٌ أَنْ يَشْفَعَ الْأَذَانَ وَيُوتِرَ الْإِقَامَةَ»  

See similar narrations below:

Collected by Ibn Mājah, Suyūṭī
ibnmajah:729 – ʿAbdullāh b. al-Jarrāḥ > al-Muʿtamir b. Sulaymān > Khālid al-Ḥadhhāʾ > Abū Qilābah > Anas b. Mālik > al-Tamasūā Shayʾ Yuʾdhinūn Bih ʿIlm Lilṣṣalāh Faʾumir Bilāl

"They looked for something by means of which they could call out informing of (the time of) the prayer. Then Bilal was commanded to say the phrases of the Adhan twice and the phrases of the Iqamah once."  

ابن ماجة:٧٢٩ – حَدَّثَنَا عَبْدُ اللَّهِ بْنُ الْجَرَّاحِ حَدَّثَنَا الْمُعْتَمِرُ بْنُ سُلَيْمَانَ عَنْ خَالِدٍ الْحَذَّاءِ عَنْ أَبِي قِلاَبَةَ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

الْتَمَسُوا شَيْئًا يُؤْذِنُونَ بِهِ عِلْمًا لِلصَّلاَةِ فَأُمِرَ بِلاَلٌ أَنْ يَشْفَعَ الأَذَانَ وَيُوتِرَ الإِقَامَةَ  

suyuti:85-132b –
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السيوطي:٨٥-١٣٢b –

"أمَرَ رَسُولُ اللهِ ﷺ بِلاَلًا أَنْ يَشْفعَ الأذَانَ وَيُوتِرَ الإِقَامَةَ إِلَى قَوْلِه: قَدْ قَامَتْ الصَّلاَةُ فَإِنَّهَا مَرَّتيْنِ".  

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