Sayyiduna Abdullah bin al-Zubayr (may Allah be pleased with him) saw people touching the Maqam of Ibrahim with their hands, so he stopped them and said: "You were not commanded to touch it; you were only commanded to pray (near it)."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13892
Nusayr bin Dhu'luq said: I saw Sayyiduna Abdullah bin al-Zubayr (may Allah be pleased with him) performing Tawaf while he had a bartalah (a kind of cap) on his head.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13893