أَخْبَرَنَا عَفَّانُ ، حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ ، أَنْبَأَنَا أَبُو حَمْزَةَ الثُّمَالِيُّ ، عَنْ الْحَسَنِ ، قَالَ :" غَائِلَةُ الْعِلْمِ النِّسْيَانُ "

Affan told us, Hammad bin Salamah told us, Abu Hamza Al-Thumali told us, on the authority of Al-Hasan, he said: “The prey of knowledge is oblivion.”