Sunnah.com reference : Book 7, Hadith 5English translation : Book 7, Hadith 788Arabic reference : Book 7, Hadith 785
Narrated Jabir bin 'Abdullah (RA):
I was traveling on a camel of mine which had become exhausted, so I intended to let it go free. The Prophet (ﷺ) followed me and made supplication for me and struck it. Then, it went as it had never done before. He then said, "Sell it to me for on Uqiya." I replied, "No." He again said, "Sell it to me." So I sold it to him for one Uqiya. However I stipulated that I should be allowed to ride it home. Then when I reached (home), I took the camel to him and he paid me its price in cash. I then went back and he sent someone after me. (When I came), he said, "Do you think that I asked you to reduce the value of your camel's price to take it? Take your camel and your money, for it is yours."

[Agreed upon; and this is Muslim's wording].
وَعَنْ جَابِرِ بْنِ عَبْدِ اَللَّهِ ‏-رَضِيَ اَللَّهُ عَنْهُمَا‏-; { أَنَّهُ كَانَ [ يَسِيرُ ] عَلَى جَمَلٍ لَهُ أَعْيَا.‏ فَأَرَادَ أَنْ يُسَيِّبَهُ.‏ قَالَ: فَلَحِقَنِي اَلنَّبِيُّ ‏- صلى الله عليه وسلم ‏-فَدَعَا لِي, وَضَرَبَهُ، فَسَارَ سَيْراً لَمْ يَسِرْ مِثْلَهُ, قَالَ: " بِعْنِيهِ بِوُقِيَّةٍ " قُلْتُ: لَا.‏ ثُمَّ قَالَ: " بِعْنِيهِ " فَبِعْتُهُ بِوُقِيَّةٍ, وَاشْتَرَطْتُ حُمْلَانَهُ إِلَى أَهْلِي, فَلَمَّا بَلَغْتُ أَتَيْتُهُ بِالْجَمَلِ, فَنَقَدَنِي ثَمَنَهُ, ثُمَّ رَجَعْتُ فَأَرْسَلَ فِي أَثَرِي.‏ فَقَالَ: " أَتُرَانِي مَاكَسْتُكَ لِآخُذَ جَمَلَكَ? خُذْ جَمَلَكَ وَدَرَاهِمَكَ.‏ فَهُوَ لَكْ }  مُتَّفَقٌ عَلَيْهِ , وَهَذَا اَلسِّيَاقُ لِمُسْلِمٍ  1‏ .‏‏1 ‏- صحيح.‏ رواه البخاري ( 2861 )‏ مطولا، وفي غير هذا الموطن مختصرا.‏ ورواه مسلم ( 3 / 1221 / رقم 109 )‏.‏