حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، عَنْ ثَابِتٍ الْبُنَانِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ رَبَاحٍ الأَنْصَارِيِّ، حَدَّثَنَا أَبُو قَتَادَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ فِي سَفَرٍ لَهُ فَمَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَمِلْتُ مَعَهُ فَقَالَ ‏"‏ انْظُرْ ‏"‏ ‏.‏ فَقُلْتُ هَذَا رَاكِبٌ هَذَانِ رَاكِبَانِ هَؤُلاَءِ ثَلاَثَةٌ حَتَّى صِرْنَا سَبْعَةً ‏.‏ فَقَالَ ‏"‏ احْفَظُوا عَلَيْنَا صَلاَتَنَا ‏"‏ ‏.‏ يَعْنِي صَلاَةَ الْفَجْرِ فَضُرِبَ عَلَى آذَانِهِمْ فَمَا أَيْقَظَهُمْ إِلاَّ حَرُّ الشَّمْسِ فَقَامُوا فَسَارُوا هُنَيَّةً ثُمَّ نَزَلُوا فَتَوَضَّئُوا وَأَذَّنَ بِلاَلٌ فَصَلَّوْا رَكْعَتَىِ الْفَجْرِ ثُمَّ صَلَّوُا الْفَجْرَ وَرَكِبُوا فَقَالَ بَعْضُهُمْ لِبَعْضٍ قَدْ فَرَّطْنَا فِي صَلاَتِنَا ‏.‏ فَقَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏إِنَّهُ لاَ تَفْرِيطَ فِي النَّوْمِ إِنَّمَا التَّفْرِيطُ فِي الْيَقَظَةِ فَإِذَا سَهَا أَحَدُكُمْ عَنْ صَلاَةٍ فَلْيُصَلِّهَا حِينَ يَذْكُرُهَا وَمِنَ الْغَدِ لِلْوَقْتِ ‏"‏ ‏.‏

Abu Qatadah reported

The Prophet (ﷺ) was on a journey, and the Messenger of Allah (ﷺ) halted, and I turned aside with him. He said: "Look!" So I said: "This is a rider, these are two riders, these are three," until we became seven. He then said: "Guard for us our prayer," meaning the Fajr prayer. Sleep overcame them, and none awoke them except the heat of the sun. They stood up and traveled a little, then they dismounted and performed ablution. Bilal pronounced the call to prayer, and they prayed the two rak'ahs of Fajr, then they prayed Fajr and mounted. Some of them said to others: "We have fallen short in our prayer." The Prophet (ﷺ) said: "There is no negligence in sleep; negligence is only when one is awake. So when any of you forgets a prayer, let him pray it when he remembers it, and on the morrow at the appointed time."