Hisham bin Urwah (may Allah have mercy on him) narrates from his father that Sayyidah Aishah (may Allah be pleased with her) said: A man stood in prayer at night and recited the Qur'an in a loud voice, so the Messenger of Allah (peace and blessings be upon him) said: "May Allah have mercy on so-and-so, for he has reminded me of such-and-such a verse which I had forgotten."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4706