Muwatta Malik, Book 20, Hadith 3 (USC-MSA) ⓘ
Yahya related to me from Malik from Nafi' that 'Abdullah ibn Umar used to do ghusl for ihram before he entered ihram, and for entering Makka, and for standing on the afternoon of 'Arafa.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ يَغْتَسِلُ لإِحْرَامِهِ قَبْلَ أَنْ يُحْرِمَ وَلِدُخُولِهِ مَكَّةَ وَلِوُقُوفِهِ عَشِيَّةَ عَرَفَةَ .
also referenced under: Book 20, Hadith 710 (In-Book)