Hudhaifa reported: The Messenger of Allah, peace and blessings be upon him, said, “Verily, I fear for you that a man will recite the Quran until his delight is seen and he takes Islam as a cloak. Then, he changes to whatever Allah wills for him, such that it is stripped from him and he throws it behind his back, assaulting his neighbor with the sword and accusing him of idolatry.” I said, “O Prophet of Allah, which one is closer to idolatry? The accused or the accuser?” The Prophet said, “Rather it is the accuser.”

Source: Sahih Ibn Hibban 81

Grade: Sahih (authentic) according to Ibn Kathir

عن حذيفة قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى الِلَّهِ عَلَيْهِ وَسَلَّمَ إِنَّ مَا أَتَخَوَّفُ عَلَيْكُمْ رَجُلٌ قَرَأَ الْقُرْآنَ حَتَّى رُئِيَتْ بَهْجَتُهُ عَلَيْهِ وَكَانَ رِدْئًا لِلإِسْلامِ غَيَّرَهُ إِلَى مَا شَاءَ الِلَّهِ فَانْسَلَخَ مِنْهُ وَنَبَذَهُ وَرَاءَ ظَهْرِهِ وَسَعَى عَلَى جَارِهِ بِالسَّيْفِ وَرَمَاهُ بِالشِّرْكِ قَالَ قُلْتُ يَا نَبِيَّ اللَّهِ أَيُّهُمَا أَوْلَى بِالشِّرْكِ الْمَرْمِيُّ أَمِ الرَّامِي قَالَ بَلِ الرَّامِي

81 صحيح ابن حبان كتاب العلم باب الزجر عن كتبة المرء السنن

المحدث ابن كثير خلاصة حكم المحدث إسناده جيد
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Abdullah ibn Amr reported: The Prophet, peace and blessings be upon him, said, “Shall I tell you about the most beloved to me and the closest to my assembly on the Day of Resurrection?” They were silent, so the Prophet repeated himself two or three times. They said, “Yes, O Messenger of Allah.” The Prophet said, “Those with the best character.”

Source: Musnad Ahmad 6696

Grade: Sahih (authentic) according to Ahmad Shakir

عن عبد الله بن عمرو أَنَّهُ سَمِعَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ أَلَا أُخْبِرُكُمْ بِأَحَبِّكُمْ إِلَيَّ وَأَقْرَبِكُمْ مِنِّي مَجْلِسًا يَوْمَ الْقِيَامَةِ فَسَكَتَ الْقَوْمُ فَأَعَادَهَا مَرَّتَيْنِ أَوْ ثَلَاثًا قَالَ الْقَوْمُ نَعَمْ يَا رَسُولَ اللَّهِ قَالَ أَحْسَنُكُمْ خُلُقًا

6696 مسند أحمد مُسْنَدُ الْمُكْثِرِينَ مِنَ الصَّحَابَةِ ألا أخبركم بأحبكم إلي وأقربكم مني مجلسا يوم القيامة

المحدث أحمد شاكر خلاصة حكم المحدث إسناده صحيح