When the lie of Abdullah b. Ubay was caught during the expedition of Muraysi and Banu al-Mustaliq
We went out with the Prophet ﷺ on a journey and the people suffered from lack of provisions. So Abdullah b. Ubay said to his companions, "Don't spend on those who are with Messenger of Allah ﷺ that they may disperse and go away from him." He also said, "If we return to Madinah, surely, the more honorable will expel therefrom the meaner."
So I went to the Prophet ﷺ and informed him of that. He sent for ʿAbdullah bin Ubai and asked him, but Abdullah b. Ubay swore that he did not say so. The people said, "Zayd told a lie to Messenger of Allah ﷺ." What they said distressed me very much. Later Allah revealed the confirmation of my statement in ˹the Surah˺ "When the hypocrites come to you..." (Munafiqun 63). So the Prophet ﷺ called them that they might ask Allah to forgive them, but they turned their heads aside. Concerning Allah's saying: 'Pieces of wood propped up,' Zayd said that They were the most handsome men.
خَرَجْنَا مَعَ النَّبِيِّ ﷺ فِي سَفَرٍ أَصَابَ النَّاسَ فِيهِ شِدَّةٌ فَقَالَ عَبْدُ اللَّهِ بْنُ أُبَىٍّ لأَصْحَابِهِ لاَ تُنْفِقُوا عَلَى مَنْ عِنْدَ رَسُولِ اللَّهِ حَتَّى يَنْفَضُّوا مِنْ حَوْلِهِ وَقَالَ لَئِنْ رَجَعْنَا إِلَى الْمَدِينَةِ لَيُخْرِجَنَّ الأَعَزُّ مِنْهَا الأَذَلَّ
فَأَتَيْتُ النَّبِيَّ ﷺ فَأَخْبَرْتُهُ فَأَرْسَلَ إِلَى عَبْدِ اللَّهِ بْنِ أُبَىٍّ فَسَأَلَهُ فَاجْتَهَدَ يَمِينَهُ مَا فَعَلَ قَالُوا كَذَبَ زَيْدٌ رَسُولَ اللَّهِ ﷺ فَوَقَعَ فِي نَفْسِي مِمَّا قَالُوا شِدَّةٌ حَتَّى أَنْزَلَ اللَّهُ ﷻ تَصْدِيقِي فِي {إِذَا جَاءَكَ الْمُنَافِقُونَ} فَدَعَاهُمُ النَّبِيُّ ﷺ لِيَسْتَغْفِرَ لَهُمْ فَلَوَّوْا رُءُوسَهُمْ وَقَوْلُهُ {خُشُبٌ مُسَنَّدَةٌ} قَالَ كَانُوا رِجَالاً أَجْمَلَ شَىْءٍ