Sunnah.com reference : Book 7, Hadith 96English translation : Book 7, Hadith 861Arabic reference : Book 7, Hadith 858
Narrated Abu Hurairah (RA):
Allah's Messenger (ﷺ) said: "An animal may be ridden, due to what is spent on it, when it is in pledge; and the milk of a camel may be drunk, due to what is spent on it, when it is in pledge. And the responsibility of spending on it is upon the one who rides (it) and drinks (its milk)."

[Reported by al-Bukhari].
وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ اَلظَّهْرُ يُرْكَبُ بِنَفَقَتِهِ إِذَا كَانَ مَرْهُونًا, وَلَبَنُ اَلدَّرِّ يُشْرَبُ بِنَفَقَتِهِ إِذَا كَانَ مَرْهُونًا, وَعَلَى اَلَّذِي يَرْكَبُ وَيَشْرَبُ اَلنَّفَقَةُ }  رَوَاهُ اَلْبُخَارِيُّ  1‏ .‏‏1 ‏- صحيح.‏ رواه البخاري ( 2512 )‏.‏