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 الْعِلَّةِ الَّتِي مِنْ أَجْلِهَا كَانَ يُؤَذِّنُ بِلَالٌ بِلَيْلٍ

ibnhibban:3472 – ʿUmar b. Muḥammad al-Hamdānī > ʿAmr b. ʿAlī al-Fallās > Yaḥyá al-Qaṭṭān > Sulaymān al-Taymī > Abū ʿUthmān > Ibn Masʿūd

"Bilal calls the Adhan at night to awaken those of you who are asleep, and so that those who are praying Qiyam cam return. Dawn is not when the light appears like this" - and he gestured with his hand - "rather dawn is when it appears like this: - and he gestured with his two forefingers. ' (Using translation from Nasāʾī 2170)  

ابن حبّان:٣٤٧٢ – أَخْبَرَنَا عُمَرُ بْنُ مُحَمَّدٍ الْهَمْدَانِيُّ قَالَ حَدَّثَنَا عَمْرُو بْنُ عَلِيٍّ الْفَلَّاسُ قَالَ حَدَّثَنَا يَحْيَى الْقَطَّانُ قَالَ حَدَّثَنَا سُلَيْمَانُ التَّيْمِيُّ عَنْ أَبِي عُثْمَانَ عَنِ ابْنِ مَسْعُودٍ

عَنِ النَّبِيِّ ﷺ قَالَ «إِنَّ بِلَالًا يُؤَذِّنُ بِلَيْلٍ لِيُنَبِّهَ نَائِمَكُمْ وَيَرْجِعَ قَائِمَكُمْ وَلَيْسَ الْفَجْرُ أَنْ يَقُولَ هَكَذَا وَأَشَارَ بِالسَّبَّابَتَيْنِ وَلَكِنَّ الْفَجْرَ أَنْ يَقُولَ هَكَذَا وَأَشَارَ بِكَفِّهِ»  

See similar narrations below:

Collected by Nasāʾī, Nasāʾī's Kubrá
nasai:2170 – ʿAmr b. ʿAlī > Yaḥyá > al-Taymī > Abū ʿUthmān > Ibn Masʿūd

"Bilal calls the Adhan at night to awaken those of you who are asleep, and so that those who are praying Qiyam cam return. Dawn is not when the light appears like this" - and he gestured with his hand - "rather dawn is when it appears like this: - and he gestured with his two forefingers. '  

النسائي:٢١٧٠ – أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ قَالَ حَدَّثَنَا يَحْيَى قَالَ حَدَّثَنَا التَّيْمِيُّ عَنْ أَبِي عُثْمَانَ عَنِ ابْنِ مَسْعُودٍ

عَنِ النَّبِيِّ ﷺ قَالَ إِنَّ بِلاَلاً يُؤَذِّنُ بِلَيْلٍ لِيُنَبِّهَ نَائِمَكُمْ وَيُرْجِعَ قَائِمَكُمْ وَلَيْسَ الْفَجْرُ أَنْ يَقُولَ هَكَذَا وَأَشَارَ بِكَفِّهِ وَلَكِنِ الْفَجْرُ أَنْ يَقُولَ هَكَذَا وَأَشَارَ بِالسَّبَّابَتَيْنِ  

nasai-kubra:2491 – ʿAmr b. ʿAlī > Yaḥyá > al-Taymī > Abū ʿUthmān > Ibn Masʿūd

"Bilal calls the Adhan at night to awaken those of you who are asleep, and so that those who are praying Qiyam cam return. Dawn is not when the light appears like this" - and he gestured with his hand - "rather dawn is when it appears like this: - and he gestured with his two forefingers. ' (Using translation from Nasāʾī 2170)  

الكبرى للنسائي:٢٤٩١ – أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ قَالَ حَدَّثَنَا يَحْيَى قَالَ حَدَّثَنَا التَّيْمِيُّ عَنْ أَبِي عُثْمَانَ عَنِ ابْنِ مَسْعُودٍ

عَنِ النَّبِيِّ ﷺ قَالَ «إِنَّ بِلَالًا يُؤَذِّنُ بِلَيْلٍ لِيُنَبَّهَ نَائِمُكُمْ وَيَرْجِعَ قَائِمُكُمْ وَلَيْسَ الْفَجْرُ أَنْ يَقُولَ هَكَذَا وَأَشَارَ بِكَفِّهِ وَلَكِنِ الْفَجْرُ أَنْ يَقُولَ هَكَذَا وَأَشَارَ بِالسَّبَّابَتَيْنِ»