Sahih Bukhari Volume 5, Book 63, Hadith 3850

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ الْجُعْفِيُّ، حَدَّثَنَا سُفْيَانُ، أَخْبَرَنَا مُطَرِّفٌ، سَمِعْتُ أَبَا السَّفَرِ، يَقُولُ سَمِعْتُ ابْنَ عَبَّاسٍ ـ رضى الله عنهما ـ يَقُولُ يَا أَيُّهَا النَّاسُ، اسْمَعُوا مِنِّي مَا أَقُولُ لَكُمْ، وَأَسْمِعُونِي مَا تَقُولُونَ، وَلاَ تَذْهَبُوا فَتَقُولُوا قَالَ ابْنُ عَبَّاسٍ، قَالَ ابْنُ عَبَّاسٍ مَنْ طَافَ بِالْبَيْتِ فَلْيَطُفْ مِنْ وَرَاءِ الْحِجْرِ، وَلاَ تَقُولُوا الْحَطِيمُ، فَإِنَّ الرَّجُلَ فِي الْجَاهِلِيَّةِ كَانَ يَحْلِفُ فَيُلْقِي سَوْطَهُ أَوْ نَعْلَهُ أَوْ قَوْسَهُ

Narrated By Abu As-Safar : I heard Ibn 'Abbas saying, "O people! Listen to what I say to you, and let me hear whatever you say, and don't go (without understanding), and start saying, 'Ibn 'Abbas said so-and-so, Ibn 'Abbas said so-and-so, Ibn 'Abbas said so-and-so.' He who wants to perform the Tawaf around the Ka'ba should go behind Al-Hijr (i.e. a portion of the Ka'ba left out unroofed) and do not call it Al-Hatim, for in the pre-Islamic period of ignorance if any man took an oath, he used to throw his whip, shoes or bow in it.