Ibn al-Jawzi said, “If you find a prophetic narration disagreeing with sound reason, contradicting established revelation, or conflicting with the principles, know that it is inauthentic.”
Al-Suyuti said, “The meaning of conflicting with the principles is that it falls outside the literature of Islam, the transmitted sciences and the famous books.”
Source: Tadrīb al-Rāwī 1/327
قَالَ ابْنُ الْجَوْزِيِّ إِذَا رَأَيْتَ الْحَدِيثَ يُبَايِنُ الْمَعْقُولَ أَوْ يُخَالِفُ الْمَنْقُولَ أَوْ يُنَاقِضُ الْأُصُولَ فَاعْلَمْ أَنَّهُ مَوْضُوعٌ
وقال السيوطي وَمَعْنَى مُنَاقَضَتِهِ لِلْأُصُولِ أَنْ يَكُونَ خَارِجًا عَنْ دَوَاوِينِ الْإِسْلَامِ مِنَ الْمَسَانِيدِ وَالْكُتُبِ الْمَشْهُورَةِ
1/327 تدريب الراوي