[Machine] I witnessed Abu Umamah al-Bahili standing at the gate of Damascus, on top of the Haruriyah (a hill), saying, "The dogs of the people of Hellfire are those who say it (the phrase "Kilabu Ahli-Nar") three times. It is better for those who kill them." Tears came from his eyes, and a man said to him, "Abu Umamah, did you hear this from the Messenger of Allah ﷺ or is it your opinion?" He replied, "If I had not heard it from the Messenger of Allah ﷺ except once or twice or three times, then I would have been brave to say so. But he repeated it seven times. This is what I have informed you." The man said, "I see that your eyes have teared up." Abu Umamah replied, "When they were believers and then disbelieved after their faith." Then he recited the verse, "And do not be like those who became divided and differed after clear proofs had come to them." (Surah Al-Imran, 3:105) It happened to them twice."
شَهِدْتُ أَبَا أُمَامَةَ الْبَاهِلِيَّ وَهُوَ وَاقِفٌ عَلَى رَأْسِ الْحَرُورِيَّةِ عِنْدَ بَابِ دِمَشْقَ وَهُوَ يَقُولُ «كِلَابُ أَهْلِ النَّارِ قَالَهَا ثَلَاثًا خَيْرُ قَتْلَى مَنْ قَتَلُوهُ» وَدَمَعَتْ عَيْنَاهُ فَقَالَ لَهُ رَجُلٌ يَا أَبَا أُمَامَةَ أَرَأَيْتَ قَوْلَكَ هَؤُلَاءِ كِلَابُ النَّارِ أَشَيْءٌ سَمِعْتَهُ مِنْ رَسُولِ اللَّهِ ﷺ أَوْ مِنْ رَأْيِكَ؟ قَالَ إِنِّي إِذًا لَجَرِيءٌ لَوْ لَمْ أَسْمَعْهُ مِنْ رَسُولِ اللَّهِ ﷺ إِلَّا مَرَّةً أَوْ مَرَّتَيْنِ أَوْ ثَلَاثًا وَعَدَّ سَبْعَ مَرَّاتٍ مَا حَدَّثْتُكُمُوهُ قَالَ لَهُ رَجُلٌ إِنِّي رَأَيْتُكَ قَدْ دَمَعَتْ عَيْنَاكَ قَالَ إِنَّهُمْ لَمَّا كَانُوا مُؤْمِنِينَ وَكَفَرُوا بَعْدَ إِيمَانِهِمْ ثُمَّ قَرَأَ {وَلَا تَكُونُوا كَالَّذِينَ تَفَرَّقُوا وَاخْتَلَفُوا مِنْ بَعْدِ مَا جَاءَهُمُ الْبَيِّنَاتُ} [آل عمران 105] الْآيَةُ فَهِيَ لَهُمْ مَرَّتَيْنِ