Sunan Ibn Majah, Book 5, Hadith 1415 (In-Book) ⓘ
It was narrated that Ghudaif bin Harith said: “I came to ‘Aishah and asked: ‘Did the Messenger of Allah recite Qur’an loudly or softly?’ She said: ‘Sometimes he would recite loud and sometimes softly.’ I said, ‘Allahu Akbar! Praise is to Allah Who has made this matter one of broad scope.’”
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ، عَنْ بُرْدِ بْنِ سِنَانٍ، عَنْ عُبَادَةَ بْنِ نُسَىٍّ، عَنْ غُضَيْفِ بْنِ الْحَارِثِ، قَالَ أَتَيْتُ عَائِشَةَ فَقُلْتُ أَكَانَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ يَجْهَرُ بِالْقُرْآنِ أَوْ يُخَافِتُ بِهِ قَالَتْ رُبَّمَا جَهَرَ وَرُبَّمَا خَافَتَ . قُلْتُ اللَّهُ أَكْبَرُ الْحَمْدُ لِلَّهِ الَّذِي جَعَلَ فِي هَذَا الأَمْرِ سَعَةً .
also referenced under: Hadith 1354 (Reference) & Volume 2, Book 5, Hadith 1354 (DarusSalam)