"Respond to the one who asks even with a sheep's foot." According to the narration of Harun: "With a sheep's burned foot." (Using translation from Nasāʾī 2565)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ «رَدُّوا السَّائِلَ وَلَوْ بِظِلْفٍ» فِي حَدِيثِ هَارُونَ «مُحْرَقٍ»