Hadith 8:2381
Abu Bakr narrated to us, he said: Ibn al-Mubarak narrated to us, from Musa ibn Uqbah, from Salim, who said: I saw him performing Tawaf, then he would enter the House (the Kaaba) and pray the two rak'ahs.
حدثنا أبو بكر قال حدثنا بن مبارك عن موسى بن عقبة عن سالم قال رأيته يطوف ثم يدخل البيت فيصلي الركعتين