حَدَّثَنَا الْفَضْلُ بْنُ الصَّبَّاحِ الْبَغْدَادِيُّ، حَدَّثَنَا مَعْنُ بْنُ عِيسَى الْقَزَّازُ، عَنْ خَالِدِ بْنِ أَبِي بَكْرٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، عَنْ أَبِيهِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ بَابُ أُمَّتِي الَّذِي يَدْخُلُونَ مِنْهُ الْجَنَّةَ عَرْضُهُ مَسِيرَةُ الرَّاكِبِ الْجَوَادَ ثَلاَثًا ثُمَّ إِنَّهُمْ لَيُضْغَطُونَ عَلَيْهِ حَتَّى تَكَادُ مَنَاكِبُهُمْ تَزُولُ ‏"‏ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ غَرِيبٌ ‏.‏ قَالَ سَأَلْتُ مُحَمَّدًا عَنْ هَذَا الْحَدِيثِ فَلَمْ يَعْرِفْهُ وَقَالَ لِخَالِدِ بْنِ أَبِي بَكْرٍ مَنَاكِيرُ عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ ‏.‏

Salim bin 'Abdullah narrated from his father that the Messenger of Allah (s.a.w) said: "The breadth of the gate through which my Ummah shall enter Paradise is the distance that a good rider covers in three. (meaning three nights or three years and, and that [the latter] is more obvious) Despite that, they shall be constrained by it until their shoulders are almost crushed completely." Translation Not Available

Book Ref: Jamiya Tirmidhi Book 38 Hadith 2548
Web Ref:  Jamiya Tirmidhi Vol 4 Book 12 Hadith 2548