Sahih Muslim 235b
Sahih Muslim · Book 2: The Book of Purification · Another description of wudu’
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.