Sahih Muslim 14690
In-book no 7413حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا جَرِيرٌ، عَنْ مُغِيرَةَ، عَنْ إِبْرَاهِيمَ، قَالَ قَالَ عَلْقَمَةُ قَرَأْتُ الْقُرْآنَ فِي سَنَتَيْنِ . فَقَالَ الْحَارِثُ الْقُرْآنُ هَيِّنٌ الْوَحْىُ أَشَدُّ .
Qutaybah bin Sa’īd narrated to us, Jarīr narrated to us, on authority of Mughīrah, on authority of Ibrāhīm , he said, Alqamah said: ‘I memorized the Qur’ān in two years’. Al-Hārith said: ‘The Qur’ān is easy; the revelation is more difficult ’.