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.
tabarani:1075al-Ḥusayn b. Isḥāq al-Tustarī > ʿUthmān b. Abū Shaybah > Yaʿlá b. Manṣūr > ʿAbd al-Raḥman b. ʿAmmār > ʿAbdullāh b. Muḥammad b. ʿAmmār b. Saʿd > Abīh Saʿd Muʾadhhin ʿUmar > Bilāl

[Machine] "He used to give the call to prayer for the Messenger of Allah ﷺ on Fridays when the shadow was equal to the length of a short palm stem, when the Prophet ﷺ sat on the pulpit."  

الطبراني:١٠٧٥حَدَّثَنَا الْحُسَيْنُ بْنُ إِسْحَاقَ التُّسْتَرِيُّ ثنا عُثْمَانُ بْنُ أَبِي شَيْبَةَ ثنا يَعْلَى بْنُ مَنْصُورٍ ثنا عَبْدُ الرَّحْمَنِ بْنُ عَمَّارٍ عَنْ عَبْدِ اللهِ بْنِ مُحَمَّدِ بْنِ عَمَّارِ بْنِ سَعْدٍ حَدَّثَهُ عَنْ أَبِيهِ سَعْدٍ مُؤَذِّنِ عُمَرَ عَنْ بِلَالٍ

«أَنَّهُ كَانَ يُؤَذِّنُ لِرَسُولِ اللهِ يَوْمَ الْجُمُعَةِ إِذَا كَانَ الْفَيْءُ قَدْرَ الشِّرَاكِ إِذَا قَعَدَ النَّبِيُّ ﷺ عَلَى الْمِنْبَرِ»  


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Collected by Suyūṭī
suyuti:135-22b
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السيوطي:١٣٥-٢٢b

"عَنْ بِلاَلٍ: كَانَ يُؤَذِّنُ لِرَسُولِ الله ﷺ يَوْمَ الْجُمُعَةِ إِذَا كَانَ الْفَىْءُ قَدْرَ الشِّرَاكِ إِذَا قَعَدَ النَّبِيُّ ﷺ عَلَى الْمِنْبَرِ".  

[طب] الطبرانى في الكبير عن بلال