حَدَّثَنَا أَحْمَدُ بْنُ عَبْدِ اللَّهِ الْوَكِيلُ ، ثنا الْحَسَنُ بْنُ عَرَفَةَ ، ثنا هُشَيْمٌ ، عَنْ خَالِدٍ ، عَنْ أَبِي قِلابَةَ ، عَنْ أَنَسٍ ، قَالَ : " أُمِرَ بِلالٌ أَنْ يَشْفَعَ الأَذَانَ ، وَيُوتِرَ الإِقَامَةَ " .
Sayyiduna Anas (may Allah be pleased with him) narrates: Sayyiduna Bilal (may Allah be pleased with him) was commanded to say the words of the adhan in even numbers and the words of the iqamah in odd numbers.