Hadithcore
Hadith #500680

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 ‏.‏

References1 variant
Arabic/English book reference
Book 2, Hadith 38