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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ahmad:343 – ʿAlī b. ʿĀṣim > Yazīd b. Abū Ziyād > ʿĀṣim b. ʿUbaydullāh > Abīh or from his grandfather al-Shak from Yazīd > ʿUmar

I saw the Messenger of Allah ﷺ doing wudoo after relieving himself, and wiping over his leather slippers (khuff), then praying.  

أحمد:٣٤٣ – حَدَّثَنَا عَلِيُّ بْنُ عَاصِمٍ أَخْبَرَنَا يَزِيدُ بْنُ أَبِي زِيَادٍ عَنْ عَاصِمِ بْنِ عُبَيْدِ اللهِ

عَنْ أَبِيهِ أَوْ جَدِّهِ الشَّكُّ مِنْ يَزِيدَ عَنْ عُمَرَ قَالَ رَأَيْتُ رَسُولَ اللهِ ﷺ تَوَضَّأَ بَعْدَ الْحَدَثِ وَمَسَحَ عَلَى خُفَّيْهِ وَصَلَّى