عَنْ أَبِي مَسْعُودٍ رَضِيَ اللَّهُ عَنْهُ قَالَ خَطَبَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ خُطْبَةً فَحَمِدَ اللَّهَ وَأَثْنَى عَلَيْهِ ثُمَّ قَالَ إِنَّ فِيكُمْ مُنَافِقِينَ فَمَنْ سَمَّيْتُ فَلْيَقُمْ ثُمَّ قَالَ قُمْ يَا فُلَانُ قُمْ يَا فُلَانُ حَتَّى سَمَّى سِتَّةً وَثَلَاثِينَ رَجُلًا ثُمَّ قَالَ إِنَّ فِيكُمْ أَوْ مِنْكُمْ فَاتَّقُوا اللَّهَ قَالَ فَمَرَّ عُمَرُ عَلَى رَجُلٍ مِمَّنْ سَمَّى مُقَنَّعٍ قَدْ كَانَ يَعْرِفُهُ قَالَ مَا لَكَ قَالَ فَحَدَّثَهُ بِمَا قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَقَالَ بُعْدًا لَكَ سَائِرَ الْيَوْمِ
It is narrated from Sayyiduna Abu Mas’ud (may Allah be pleased with him), he says: The Messenger of Allah (peace and blessings be upon him) delivered a sermon to us, he (peace and blessings be upon him) praised and glorified Allah and said: Surely there are hypocrites among you. As I mention each one by name, he should stand up. O so-and-so! You stand up. O so-and-so! You also stand up. In this way, the Prophet (peace and blessings be upon him) mentioned the names of thirty-six men, and then said: There are hypocrites among you, so fear Allah Almighty. Sayyiduna Umar passed by a man whose name had been mentioned; he had covered himself with a cloth. Sayyiduna Umar (may Allah be pleased with him) recognized him, and asked him: What has happened to you? He narrated to him the hadith of the Messenger of Allah (peace and blessings be upon him). He (Umar) said: May distance be for you for the rest of the days.