Pillars of Ablution
2 hadiths
Woe to the heel bones from the Hellfire
Abu Hurayrah, ‘Abdullāh ibn ‘Amr, and ‘Ā'ishah (may Allah be pleased with them) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Woe to the heel bones from the Hellfire!"
A man performed ablution and left a small part on his foot equal to the size of a nail unwashed. The Prophet (may Allah's peace and blessings be upon him) saw that and said: "Go back and perform your ablution properly." He performed it again and prayed
Jābir (may Allah be pleased with him) reported: ‘Umar ibn al-Khattāb said to me: A man performed ablution and left a small part on his foot equal to the size of a nail unwashed. The Prophet (may Allah's peace and blessings be upon him) saw that and said: "Go back and perform your ablution properly." He performed it again and prayed.