رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1038
The Book of Virtues
The Excellence of Adhan
وَعَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ قَالَ: إِذَا سَمِعْتُمُ النِّدَاءَ، فَقُولُوا كَمَا يَقُولُ الْمُؤَذِّنُ ((مُتَّفَقٌ عَلَيْهِ)).
Abu Sa'id Al-Khudri (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said, "When you hear the Mu'adhdhin (pronouncing the call to Salat), repeat after him what he says." [Al-Bukhari and Muslim].
Riyad as-Salihin, 1038