Silsilat al-Ahadith al-Sahihah

Narrated from Sayyiduna Khalid bin Walid, Yazid bin Abi Sufyan, Shurahbil bin Hasanah, and Amr bin Al-As (may Allah be pleased with them) that they heard the Noble Prophet (peace and blessings be upon him) say: "Complete the ablution properly, woe to the heels (left) dry (in ablution) from the Fire."