Bukhari :: Book 3 :: Volume 48 :: Hadith 823
The Prophet heard a man (reciting Quran) in the Mosque, and he said, "May Allah bestow His Mercy upon him. No doubt, he made me remember such-and such Verses of such-and-such Sura which I dropped (from my memory).
Narrated Aisha: The Prophet performed the Tahajjud prayer in my house, and then he heard the voice of 'Abbas who was praying in the Mosque, and said, "O 'Aisha! Is this 'Abbad's voice?" I said, "Yes." He said, "O Allah! Be merciful to 'Abbas!"
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