وَأَنَّ اللَّفْظَةَ الَّتِي فِي خَبَرِ أَنَسٍ إِنَّمَا هِيَ مِنْ أَخْبَارِ أَلْفَاظِ الْعَامِّ الَّتِي يُرَادُ بِهَا الْخَاصُّ، إِذِ الْأَذَانُ وِتْرٌ لَا شَفْعٌ؛ لِأَنَّ الْمُؤَذِّنَ إِنَّمَا يَقُولُ: لَا إِلَهَ إِلَّا اللَّهُ، فِي آخِرِ الْأَذَانِ مَرَّةً وَاحِدَةً. وَكَذَلِكَ الْمُقِيمُ يُثَنِّي فِي الِابْتِدَاءِ اللَّهُ أَكْبَرُ، فَيَقُولُهُ مَرَّتَيْنِ، وَكَذَلِكَ يَقُولُ: قَدْ قَامَتِ الصَّلَاةُ مَرَّتَيْنِ، وَيَقُولُ أَيْضًا: اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ مَرَّتَيْنِ
And the Prophet (peace be upon him) has ordered that some of the words of the Iqamah be said once; he did not order that all the Takbirs be said once. And the words mentioned in the narration of Sayyiduna Anas (may Allah be pleased with him) are from such a narration whose words are general but whose meaning is specific. Because the Adhan is said once, not twice. Because the Mu’adhdhin says « لَا إِلٰهَ إِلَّا الله » only once at the end, likewise the one who says the Takbir says « اللهُ أَكْبَرُ » twice at the beginning of the Iqamah, and likewise « قد قامت الصلاة » is said twice, and « اللهُ أَكْبَرُ » is also said twice.