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.
bayhaqi:1112Abū ʿAbdullāh > Abū Bakr > ʿAbdullāh > Isḥāq > Ibn Wahb > Muʿāwiyah b. Ṣāliḥ > al-ʿAlāʾ b. al-Ḥārith > Nāfiʿ

[Machine] "And Abu Abdullah (Imam Ahmad) narrated to us, from Abu Bakr, from Abdullah, from Ishaq, from Ibn Wahb, from Muaawiya ibn Salih, from Al-Ala' ibn Al-Harith, from Nafi', who said: Ibn Umar experienced sexual defilement during a journey, so he performed ablution with tayammum (dry ablution). He then ordered me to lead the prayer, and I was in a state of ritual purification (wudu'). This act is recommended (Mustahabb) and it has been narrated that there is a weak hadith regarding it."  

البيهقي:١١١٢

وَأَخْبَرَنَا أَبُو عَبْدِ اللهِ أنا أَبُو بَكْرٍ أنا عَبْدُ اللهِ ثنا إِسْحَاقُ ثنا ابْنُ وَهْبٍ ثنا مُعَاوِيَةُ بْنُ صَالِحٍ عَنِ الْعَلَاءِ بْنِ الْحَارِثِ عَنْ نَافِعٍ قَالَ أَصَابَ ابْنَ عُمَرَ جَنَابَةٌ فِي سَفَرٍ فَتَيَمَّمَ فَأَمَرَنِي فَصَلَّيْتُ بِهِ وَكُنْتُ مُتَوَضِّئًا وَهَذَا مَحْمُولٌ عَلَى الِاسْتِحْبَابِ وَرُوِيَ فِيهِ حَدِيثٌ ضَعِيفٌ