بُلُوغُ الْمَرَامِ
Bulugh al-Maram 859
Business Transactions
وَعَنْهُ قَالَ: قَالَ رَسُولُ اَللَّهِ -صَلَّى اَللَّهُ عَلَيْهِ وَسَلَّمَ: { لَا يَغْلَقُ اَلرَّهْنُ مِنْ صَاحِبِهِ اَلَّذِي رَهَنَهُ, لَهُ غُنْمُهُ, وَعَلَيْهِ غُرْمُهُ } رَوَاهُ اَلدَّارَقُطْنِيُّ, وَالْحَاكِمُ, وَرِجَالهُ ثِقَاتٌ. إِلَّا أَنَّ اَلْمَحْفُوظَ عِنْدَ أَبِي دَاوُدَ وَغَيْرِهِ إِرْسَالُهُ [1] .
Narrated [Abu Hurairah (RA)]: Allah's Messenger (ﷺ) said: "A pledge does not become lost to its owner when he does not redeem it in time. Any increase in its value goes to him and any lost must be borne by him." [Reported by ad-Daraqutni and al-Hakim. Its narrators are reliable. However, the strongest opinion is that it is Mursal (missing link in the chain after the Tabi'i) as reported by Abu Dawud and others].
Sunnah.com reference: Book 7, Hadith 97