وَالدَّلِيلُ عَلَى أَنَّ الَّذِي قُلْنَا مِنْ هَذَا هُوَ اللَّازِمُ دُونَ مَا خَالَفَهُ قَوْلُ اللَّهِ جَلَّ ذِكْرُهُ: ﴿يَا أَيُّهَا الَّذِينَ آمَنُوا إِنْ جَاءَكُمْ فَاسِقٌ بِنَبَإٍ فَتَبَيَّنُوا أَنْ تُصِيبُوا قَوْمًا بِجَهَالَةٍ فَتُصْبِحُوا عَلَى مَا فَعَلْتُمْ نَادِمِينَ﴾
Translation: The proof for this rule includes Allah’s command: believers must verify a report brought by a sinful person, lest they harm people in ignorance and later regret it.
Qur’an 49:6 commands verification (“fa-tabayyanū”) before acting on a report from a compromised source. Muslim applies this to responsible hadith transmission. The verse calls for scrutiny; it does not itself declare every suspicious report conclusively false.