"In the morning I went to 'Ubadah bin As-Samit, and I met him while he was on his way to the Masjid. I told him what Abu Muhammad said, and 'Ubadah said: 'Abu Muhammad is wrong. I heard the Messenger of Allah ﷺ say: 'Five prayers are those that Allah has decreed for (His) slaves, whoever does them, and does not neglect any of them out of disregard toward them, will have a promise from Allah that He will admit him to Paradise. And whoever does not to them will have no such promise from Allah; if He wills he will punish him and if He wills He will admit him to Paradise. (Using translation from Nasāʾī 461)
أَخْبَرَهُ وَكَانَ بِالشَّامِ وَكَانَ قَدْ أَدْرَكَ مُعَاوِيَةَ فَأَخْبَرَهُ أَنَّ الْمُخْدَجِيَّ رَجُلًا مِنْ بَنِي كِنَانَةَ أَخْبَرَهُ أَنَّ رَجُلًا مِنَ الْأَنْصَارِ كَانَ بِالشَّامِ يُكْنَى أَبَا مُحَمَّدٍ أَخْبَرَهُ أَنَّ الْوَتْرَ وَاجِبٌ فَذَكَرَ الْمُخْدَجِيُّ أَنَّهُ رَاحَ إِلَى عُبَادَةَ بْنِ الصَّامِتِ فَذَكَرَ لَهُ أَنَّ أَبَا مُحَمَّدٍ يَقُولُ الْوَتْرُ وَاجِبٌ فَقَالَ عُبَادَةُ بْنُ الصَّامِتِ كَذَبَ أَبُو مُحَمَّدٍ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ خَمْسُ صَلَوَاتٍ كَتَبَهُنَّ اللهُ عَلَى الْعِبَادِ مَنْ أَتَى بِهِنَّ لَمْ يُضَيِّعْ مِنْهُنَّ شَيْئًا اسْتِخْفَافًا بِحَقِّهِنَّ كَانَ لَهُ عِنْدَ اللهِ عَهْدٌ أَنْ يُدْخِلَهُ الْجَنَّةَ وَمَنْ لَمْ يَأْتِ بِهِنَّ فَلَيْسَ لَهُ عِنْدَ اللهِ عَهْدٌ إِنْ شَاءَ عَذَّبَهُ وَإِنْ شَاءَ غَفَرَ لَهُ