مُوَطَّأُ مَالِكٍ
Muwatta Malik 957
Hajj
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عَبْدَ اللَّهِ بْنَ عَبَّاسٍ، كَانَ يَقُولُ مَا بَيْنَ الرُّكْنِ وَالْبَابِ الْمُلْتَزَمُ .
Yahya related to me from Malik that he had heard that Abdullah ibn Abbas used to say that the area between the corner of the Black Stone and the door of the Kaba was called al-Multazam.
Arabic/English book reference: Book 20, Hadith 260