A man from the Ansar came to the Prophet ﷺ and said, "I saw in a dream, as if I were awake, a man descending from the sky wearing two green garments. He came down upon the stump of a wall in Madinah and gave the call to prayer, repeating each phrase twice. Then he sat down, then stood and gave the iqamah, also repeating each phrase twice."The Prophet ﷺ said, "What you saw is good. Teach it to Bilal."Umar said, "I had seen the same thing, but he beat me to it."
حدثنا أسود بن عامر أنبأنا أبو بكر يعني ابن عياش عن الأعمش عن عمرو بن مرة عن عبد الرحمن بن أبي ليلى
جاء رجل من الأنصار إلى النبي ﷺ فقال إني رأيت في النوم كأني مستيقظ أرى رجلا نزل من السماء عليه بردان أخضران نزل على جذم حائط من المدينة فأذن مثنى مثنى ثم جلس ثم أقام فقال مثنى مثنى قال نعم ما رأيت علمها بلالا قال قال عمر قد رأيت مثل ذلك ولكنه سبقني
No references are available.
Its isnad is sahih. Abdul-Rahman bin Abu Layla was a mukhadram among the trustworthy Tabiin, and his father was a companion. The hadith about the adhan was mentioned in detail earlier at 1630.