Hadith 367

نا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى الصَّنْعَانِيُّ ، نا الْمُعْتَمِرُ ، قَالَ : سَمِعْتُ خَالِدًا ، يُحَدِّثُ ، عَنْ أَبِي قِلابَةَ ، عَنْ أَنَسٍ ، أَنَّهُ حَدَّثَ : " أَنَّهُمُ الْتَمَسُوا ، شَيْئًا يُؤَذِّنُونَ بِهِ عِلْمًا لِلصَّلاةِ ، قَالَ : فَأُمِرَ بِلالٌ أَنْ يَشْفَعَ الأَذَانَ وَيُوتِرَ الإِقَامَةَ "
Sayyiduna Anas (may Allah be pleased with him) narrates that the Companions searched for something by which they could announce the time of prayer, so that they could call the Adhan. He says that Sayyiduna Bilal (may Allah be pleased with him) was commanded to say the words of the Adhan twice each and the words of the Iqamah once each.
Hadith Reference صحيح ابن خزيمه / جماع أبواب الأذان والإقامة / 367
Hadith Takhrij صحيح بخاري