The Book of Purification
2/7. Chapter:
Another description of wudu’
Sahih Muslim
وَحَدَّثَنِي الْقَاسِمُ بْنُ زَكَرِيَّاءَ، حَدَّثَنَا خَالِدُ بْنُ مَخْلَدٍ، عَنْ سُلَيْمَانَ، - هُوَ ابْنُ بِلاَلٍ - عَنْ عَمْرِو بْنِ يَحْيَى، بِهَذَا الإِسْنَادِ نَحْوَهُ وَلَمْ يَذْكُرِ الْكَعْبَيْنِ .
This hadith is narrated by Amr b. Yahya with the same chain of transmitters, but there is no mention of ankles.
Reference : Sahih Muslim 235bIn-book reference : Book 2, Hadith 23USC-MSA web (English) reference : Book 2, Hadith 454