Mishkat al-Masabih 29 Excellent Qualities and Description of the Prophet كتاب الفضائل والشمائل 196

وَعَنْ أُسَامَةَ بْنِ زَيْدٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم: «من تَقول عَليّ مالم أَقُلْ فَلْيَتَبَوَّأْ مَقْعَدَهُ مِنَ النَّارِ» . وَذَلِكَ أَنَّهُ بَعَثَ رَجُلًا فَكَذَبَ عَلَيْهِ فَدَعَا عَلَيْهِ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَوَجَدَ مَيِّتًا وَقد انشقَّ بَطْنه وَلم تقبله الأَرْض. رَوَاهُمَا الْبَيْهَقِيّ فِي دَلَائِل النُّبُوَّة

Usama b. Zaid reported God’s messenger as saying, “Let him who falsely attributes to me things I have not said come to his seat in hell.” That was because a man he had sent on an errand had told lies about him. God’s messenger therefore invoked a curse on him and he was found dead with his belly split, and the earth would not accept him. Baihaqi transmitted the two traditions in Dala’il an-Nubuwa .