It is narrated from Imam al-Sha'bi (may Allah have mercy on him) that the Messenger of Allah (peace and blessings be upon him) was greatly concerned about the call (adhan) for the prayer, and he (peace and blessings be upon him) disliked striking a bell (naqus) as the people of Makkah did. So when the time of prayer came, he (peace and blessings be upon him) would send some men who would call out and inform the people, but this work kept them themselves occupied (and away) from the prayer. Sayyiduna Abdullah bin Zayd al-Ansari (may Allah be pleased with him) returned home affected by this concern of the Messenger of Allah (peace and blessings be upon him). Then in a dream someone came to him and asked: "Why are you concerned?" He said: "Because of the concern of the Messenger of Allah (peace and blessings be upon him)." The one who came said: "Go to the Prophet (peace and blessings be upon him) and tell him to have the call to prayer given with these words: 'Allahu akbar, Allahu akbar, Allahu akbar, Allahu akbar, ashhadu an la ilaha illallah (twice), ashhadu anna Muhammadan rasulullah (twice), hayya 'ala al-salah (twice), hayya 'ala al-falah (twice), Allahu akbar, Allahu akbar, la ilaha illallah' (Allah is the Greatest, Allah is the Greatest, Allah is the Greatest, Allah is the Greatest. I bear witness that there is no god worthy of worship except Allah (twice); I bear witness that Muhammad is the Messenger of Allah (twice). Come to the prayer (twice); come to success (twice). Allah is the Greatest, Allah is the Greatest; there is no god worthy of worship except Allah)." Then he told him to place the like of these words between the adhan and the iqamah as well. Abdullah bin Zayd (may Allah be pleased with him) came to the Messenger of Allah (peace and blessings be upon him) and informed him of this, and he (peace and blessings be upon him) said: "Teach these words to Bilal."
Meanwhile Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) came and said: "I too saw exactly the same dream that Abdullah bin Zayd saw, but Abdullah got there before me."
This narration is mursal and its chain is sahih (authentic), and it is an excellent supporting report (shahid) for the hadith of Ibn Ishaq recorded in the Sunan.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الصلاة / 224
Hadith Gradingمحدثین:إسناده حسن صحيح، مرسل
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: هَذَا مُرْسَلٌ صَحِيحُ الْإِسْنَادِ وَهُوَ شَاهِدٌ جَيِّدٌ لِحَدِيثِ ابْنِ إِسْحَاقَ الْمُخَرَّجِ فِي السُّنَنِ . » «أورده ابن حجر فى "المطالب العالية"، 224، وأخرجه أبو داود فى "المراسيل"، 19»