Sahih Bukhari Volume 1, Book 8, Hadith 476

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنْ عُقَيْلٍ، عَنِ ابْنِ شِهَابٍ، قَالَ أَخْبَرَنِي عُرْوَةُ بْنُ الزُّبَيْرِ، أَنَّ عَائِشَةَ، زَوْجَ النَّبِيِّ صلى الله عليه وسلم قَالَتْ لَمْ أَعْقِلْ أَبَوَىَّ إِلاَّ وَهُمَا يَدِينَانِ الدِّينَ، وَلَمْ يَمُرَّ عَلَيْنَا يَوْمٌ إِلاَّ يَأْتِينَا فِيهِ رَسُولُ اللَّهِ صلى الله عليه وسلم طَرَفَىِ النَّهَارِ بُكْرَةً وَعَشِيَّةً، ثُمَّ بَدَا لأَبِي بَكْرٍ فَابْتَنَى مَسْجِدًا بِفِنَاءِ دَارِهِ، فَكَانَ يُصَلِّي فِيهِ وَيَقْرَأُ الْقُرْآنَ، فَيَقِفُ عَلَيْهِ نِسَاءُ الْمُشْرِكِينَ، وَأَبْنَاؤُهُمْ يَعْجَبُونَ مِنْهُ وَيَنْظُرُونَ إِلَيْهِ، وَكَانَ أَبُو بَكْرٍ رَجُلاً بَكَّاءً لاَ يَمْلِكُ عَيْنَيْهِ إِذَا قَرَأَ الْقُرْآنَ، فَأَفْزَعَ ذَلِكَ أَشْرَافَ قُرَيْشٍ مِنَ الْمُشْرِكِينَ‏.‏

Narrated By 'Aisha : (The wife of the Prophet) I had seen my parents following Islam since I attained the age of puberty. Not a day passed but the Prophet visited us, both in the mornings and evenings. My father Abii Bakr thought of building a mosque in the courtyard of his house and he did so. He used to pray and recite the Qur'an in it. The pagan women and their children used to stand by him and look at him with surprise. Abu Bakr was a Soft-hearted person and could not help weeping while reciting the Qur'an. The chiefs of the Quraish pagans became afraid of that (i.e. that their children and women might be affected by the recitation of Qur'an)."