Hadith 8:274
Jabir said that God’s Messenger gave licence that a man might use for himself a stick, a whip, a rope and things of that type which he picked up. Abu Dawud transmitted it.
وَعَنْ جَابِرٍ قَالَ: رَخَّصَ لَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي الْعَصَا وَالسَّوْطِ وَالْحَبْلِ وَأَشْبَاهِهِ يَلْتَقِطُهُ الرَّجُلُ يَنْتَفِعُ بِهِ. رَوَاهُ أَبُو دَاوُد
Original Reference: Mishkat al-Masabih 3040