The Book of Eclipses
16/18. Chapter:
Reciting out loud during the eclipse prayer
Sunan an-Nasai
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا الْوَلِيدُ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ نَمِرٍ، أَنَّهُ سَمِعَ الزُّهْرِيَّ، يُحَدِّثُ عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّهُ صَلَّى أَرْبَعَ رَكَعَاتٍ فِي أَرْبَعِ سَجَدَاتٍ وَجَهَرَ فِيهَا بِالْقِرَاءَةِ كُلَّمَا رَفَعَ رَأْسَهُ قَالَ " سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ رَبَّنَا وَلَكَ الْحَمْدُ " .
It was narrated from Aishah that: The Messenger of Allah (ﷺ) prayed, bowing four times, and he recited loudly, and every time he raised his head he said: "Sami Allahu liman hamidah. Rabbana wa lakal-hamd (Allah hears those who praise Him, Our Lord to You be praise.)."
Reference : Sunan an-Nasa'i 1494In-book reference : Book 16, Hadith 36English translation : Vol. 2, Book 16, Hadith 1495