I saw Bilal calling the adhan before the Messenger of Allah ﷺ with each phrase repeated twice, and pronouncing the iqamah with each phrase once.
حدثنا أبو بدر عباد بن الوليد حدثني معمر بن محمد بن عبيد الله بن أبي رافع مولى النبي ﷺ حدثني أبي محمد بن عبيد الله عن أبيه عبيد الله
رأيت بلالا يؤذن بين يدي رسول الله ﷺ مثنى مثنى ويقيم واحدة
No references are available.
[Its chain is daif] Busiri said, this chain is daif, because they agree on the weakness of Mamar bin Muhammad bin Ubaydullah and his father Muhammad.