أَخْبَرَنَا نُعَيْمُ بْنُ حَمَّادٍ ، حَدَّثَنَا بَقِيَّةُ ، عَنْ عَبْدِ اللَّهِ بْنِ عَبْدِ الرَّحْمَنِ القُشَيْرِيّ ، قَالَ : قَالَ دَاوُدُ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ :" قُلْ لِصَاحِبِ الْعِلْمِ يَتَّخِذْ عَصًا مِنْ حَدِيدٍ، وَنَعْلَيْنِ مِنْ حَدِيدٍ، وَيَطْلُبْ الْعِلْمَ، حَتَّى تَنْكَسِرَ الْعَصَا وَتَنْخَرِقَ النَّعْلَانِ "

Nuaym bin Hammad told us, Baqiya told us, on the authority of Abdullah bin Abdul Rahman Al-Qushayri, he said: David the Prophet, may God bless him and grant him peace, said “Tell the possessor of knowledge to take an iron staff and two iron sandals, and seek knowledge until the staff breaks and the sandals are pierced.”