Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ibnmajah:455al-ʿAbbās b. ʿUthmān And ʿUthmān b. Ismāʿīl al-Dimashqiyyān > al-Walīd b. Muslim > Shaybah b. al-Aḥnaf > Abū Salāam al-Aswad > Abū Ṣāliḥ al-Ashʿarī > Abū ʿAbdullāh al-Ashʿarī

They all heard the Messenger of Allah say: 'Complete the ablution. Woe to the heels because of Hell-fire."  

ابن ماجة:٤٥٥حَدَّثَنَا الْعَبَّاسُ بْنُ عُثْمَانَ وَعُثْمَانُ بْنُ إِسْمَاعِيلَ الدِّمَشْقِيَّانِ قَالاَ حَدَّثَنَا الْوَلِيدُ بْنُ مُسْلِمٍ حَدَّثَنَا شَيْبَةُ بْنُ الأَحْنَفِ عَنْ أَبِي سَلاَّمٍ الأَسْوَدِ عَنْ أَبِي صَالِحٍ الأَشْعَرِيِّ حَدَّثَنِي أَبُو عَبْدِ اللَّهِ الأَشْعَرِيُّ

عَنْ خَالِدِ بْنِ الْوَلِيدِ وَيَزِيدَ بْنِ أَبِي سُفْيَانَ وَشُرَحْبِيلَ ابْنِ حَسَنَةَ وَعَمْرِو بْنِ الْعَاصِ كُلُّ هَؤُلاَءِ سَمِعُوا مِنْ رَسُولِ اللَّهِ ﷺ قَالَ أَتِمُّوا الْوُضُوءَ وَيْلٌ لِلأَعْقَابِ مِنَ النَّارِ