سُنَنُ ابْنِ مَاجَهْ
Sunan Ibn Majah 447
The Book of Purification and its Sunnah
Running the fingers of one hand between the finger of the other (and the toes)
حَدَّثَنَا إِبْرَاهِيمُ بْنُ سَعِيدٍ الْجَوْهَرِيُّ، حَدَّثَنَا سَعْدُ بْنُ عَبْدِ الْحَمِيدِ بْنِ جَعْفَرٍ، عَنِ ابْنِ أَبِي الزِّنَادِ، عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ صَالِحٍ، مَوْلَى التَّوْأَمَةِ عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ إِذَا قُمْتَ إِلَى الصَّلاَةِ فَأَسْبِغِ الْوُضُوءَ وَاجْعَلِ الْمَاءَ بَيْنَ أَصَابِعِ يَدَيْكَ وَرِجْلَيْكَ .
It was narrated that Ibn 'Abbas said: 'The Messenger of Allah said: 'When you get up for prayer, perform ablution properly and make the water run between your toes and your fingers.'"
Sunan Ibn Majah, 447Hasan (Darussalam)