Sahih Muslim Book - 1, Hadith - 297

و حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ وَأَبُو كُرَيْبٍ قَالَا حَدَّثَنَا أَبُو مُعَاوِيَةَ عَنْ الْأَعْمَشِ عَنْ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ وَهَذَا حَدِيثُ أَبِي بَكْرٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ثَلَاثٌ لَا يُكَلِّمُهُمْ اللَّهُ يَوْمَ الْقِيَامَةِ وَلَا يَنْظُرُ إِلَيْهِمْ وَلَا يُزَكِّيهِمْ وَلَهُمْ عَذَابٌ أَلِيمٌ رَجُلٌ عَلَى فَضْلِ مَاءٍ بِالْفَلَاةِ يَمْنَعُهُ مِنْ ابْنِ السَّبِيلِ وَرَجُلٌ بَايَعَ رَجُلًا بِسِلْعَةٍ بَعْدَ الْعَصْرِ فَحَلَفَ لَهُ بِاللَّهِ لَأَخَذَهَا بِكَذَا وَكَذَا فَصَدَّقَهُ وَهُوَ عَلَى غَيْرِ ذَلِكَ وَرَجُلٌ بَايَعَ إِمَامًا لَا يُبَايِعُهُ إِلَّا لِدُنْيَا فَإِنْ أَعْطَاهُ مِنْهَا وَفَى وَإِنْ لَمْ يُعْطِهِ مِنْهَا لَمْ يَفِ.

It was narrated that Abu Hurairah said - and this is the Hadith of Abu Bakr -: "The Messenger of Allah (s.a.w) said: 'There are three to whom Allah will not speak on the Day of Resurrection, nor will He look at them or sanctify them, and theirs will be a painful torment: A man who has surplus water in the desert which he withholds from a wayfarer; a man who sells his goods to a man after 'Asr, swearing by Allah that he bought it for such-and-such a price, and (the other man) believes him although that is not the case; and a man who only swears allegiance to a ruler for the sake of worldly gain, and if he gives him something of that, he is loyal to him, and if he does not give him anything, he is not loyal."'