Muwatta Imam Malik Book of Purity, Hadith 38

Yahya related to me from Malik from Nafi that Abdullah ibn Umar used two fingers to take water to his ears.

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ يَأْخُذُ الْمَاءَ بِأَصْبُعَيْهِ لأُذُنَيْهِ .