Sahih Muslim Book - 50, Hadith - 7033

حَدَّثَنَا الْحَسَنُ بْنُ عَلِىٍّ الْحُلْوَانِىُّ وَمُحَمَّدُ بْنُ سَهْلٍ التَّمِيمِىُّ قَالاَ حَدَّثَنَا ابْنُ أَبِى مَرْيَمَ أَخْبَرَنَا مُحَمَّدُ بْنُ جَعْفَرٍ أَخْبَرَنِى زَيْدُ بْنُ أَسْلَمَ عَنْ عَطَاءِ بْنِ يَسَارٍ عَنْ أَبِى سَعِيدٍ الْخُدْرِىِّ أَنَّ رِجَالاً مِنَ الْمُنَافِقِينَ فِى عَهْدِ رَسُولِ اللَّهِ -صلى الله عليه وسلم- كَانُوا إِذَا خَرَجَ النَّبِىُّ -صلى الله عليه وسلم- إِلَى الْغَزْوِ تَخَلَّفُوا عَنْهُ وَفَرِحُوا بِمَقْعَدِهِمْ خِلاَفَ رَسُولِ اللَّهِ -صلى الله عليه وسلم- فَإِذَا قَدِمَ النَّبِىُّ -صلى الله عليه وسلم- اعْتَذَرُوا إِلَيْهِ وَحَلَفُوا وَأَحَبُّوا أَنْ يُحْمَدُوا بِمَا لَمْ يَفْعَلُوا فَنَزَلَتْ (لاَ تَحْسَبَنَّ الَّذِينَ يَفْرَحُونَ بِمَا أَتَوْا وَيُحِبُّونَ أَنْ يُحْمَدُوا بِمَا لَمْ يَفْعَلُوا فَلاَ تَحْسَبَنَّهُمْ بِمَفَازَةٍ مِنَ الْعَذَابِ)

It was narrated from Abu Sa'eed Al-Khudri that at the time of the Messenger of Allah (s.a.w), when the Messenger of Allah (s.a.w) went out on a campaign, the hypocrites would stay behind, and they would be happy that they were staying behind, against (the order of) the Messenger of Allah (s.a.w) When the Messenger of Allah (s.a.w) came back, they would make excuses and swear oaths, and they would like to be praised for what they had not done. Then it was revealed: "Think not that those who rejoice in what they have done (or brought about), and love to be praised for what they have not done, - think not you that they are rescued from the torment, and for them is a painful torment."