Bishr b. al-Ḥakam > ʿAbd al-Razzāq > Maʿmar > ʿAbdullāh b. Abū Bakr b. Muḥammad b. ʿAmr b. Ḥazm from his father from his grandfather

"The Prophet ﷺ wrote a book for them and mentioned something similar to it." – Weak Chain

حَدَّثَنَا بِشْرُ بْنُ الْحَكَمِ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَنْبَأَنَا مَعْمَرٌ عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرِ بْنِ مُحَمَّدِ بْنِ عَمْرِو بْنِ حَزْمٍ عَنْ أَبِيهِ عَنْ جَدِّه

أَنَّ النَّبِيَّ ﷺ كَتَبَ لَهُمْ كِتَابًا فَذَكَرَ نَحْوَهُ – إسناده ضعيف