"Aishah saw 'Abdur-Rahman performing abluti0on, and she said: Perform ablution properly, for I heard the Messenger of Allah say: 'Woe to the Achilles' tendon because of Hell-fire.'" (Using translation from Ibn Mājah 452)
عَنْ أَبِي سَلَمَةَ تَوَضَّأَ عَبْدُ الرَّحْمَنِ عِنْدَ عَائِشَةَ فَقَالَتْ يَا عَبْدَ الرَّحْمَنِ أَسْبِغِ الْوُضُوءَ فَإِنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ وَيْلٌ لِلْعَرَاقِيبِ مِنَ النَّارِ