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.
ahmad:404Wakīʿ > Sufyān > Abū al-Naḍr > Abū Anas

Didnʿt you see the Messenger of Allah ﷺ do wudoo like this? They said: Yes  

أحمد:٤٠٤حَدَّثَنَا وَكِيعٌ حَدَّثَنَا سُفْيَانُ عَنْ أَبِي النَّضْرِ عَنْ أَبُو أَنَسٍ

أَنَّ عُثْمَانَ تَوَضَّأَ بِالْمَقَاعِدِ ثَلاثًا ثَلاثًا وَعِنْدَهُ رِجَالٌ مِنْ أَصْحَابِ رَسُولِ اللهِ ﷺ قَالَ أَلَيْسَ هَكَذَا رَأَيْتُمْ رَسُولَ اللهِ ﷺ يَتَوَضَّأُ؟ قَالُوا نَعَمْ