Yahya related to me from Malik from Nafi that Abdullah ibn Umarused to pray dhuhr, asr, maghrib and isha at al-Muhassab, and thenenter Makka at night and do tawaf of the House. (IT)
USC-MSA web (English) reference: Book 20, Hadith 216 (IT)
Arabic reference (IT): Book 20, Hadith 913 (IT)