أَخْبَرَنِي هَارُونُ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنَا مَعْنٌ، قَالَ حَدَّثَنَا مَالِكٌ، ح وَأَنْبَأَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنِ ابْنِ بُجَيْدٍ الأَنْصَارِيِّ، عَنْ جَدَّتِهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ رُدُّوا السَّائِلَ وَلَوْ بِظِلْفٍ ‏"‏ ‏.‏ فِي حَدِيثِ هَارُونَ مُحْرَقٍ ‏.‏

It was narrated from Abu Bujaid Al-Ansari from his grandmother that the Messenger of Allah said: "Respond to the one who asks even with a sheep's foot." According to the narration of Harun: "With a sheep's burned foot." Translation Not Available

Book Ref: Sunan An Nisai Book 23 Hadith 2565
Web Ref:  Sunan An Nisai Vol 3 Book 23 Hadith 2566