Sunan Abi Dawud, Book 1, Hadith 23 (USC-MSA)

Narrated Hudhaifah : The Apostle of Allaah ( sal Allaahu alayhi wa sallam ) came to a midden of some people and urinated while standing. He then asked for water and wiped his shoes. Abu Dawud said: Musaddad, a narrator, reported: I went far away from him. He then called me and I reached just near his heals.

حَدَّثَنَا حَفْصُ بْنُ عُمَرَ، وَمُسْلِمُ بْنُ إِبْرَاهِيمَ، قَالاَ حَدَّثَنَا شُعْبَةُ، ح وَحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا أَبُو عَوَانَةَ، - وَهَذَا لَفْظُ حَفْصٍ - عَنْ سُلَيْمَانَ، عَنْ أَبِي وَائِلٍ، عَنْ حُذَيْفَةَ، قَالَ أَتَى رَسُولُ اللَّهِ صلى الله عليه وسلم سُبَاطَةَ قَوْمٍ فَبَالَ قَائِمًا ثُمَّ دَعَا بِمَاءٍ فَمَسَحَ عَلَى خُفَّيْهِ ‏.‏ قَالَ أَبُو دَاوُدَ قَالَ مُسَدَّدٌ قَالَ فَذَهَبْتُ أَتَبَاعَدُ فَدَعَانِي حَتَّى كُنْتُ عِنْدَ عَقِبِهِ ‏.‏

sunnah.com

also referenced under: Hadith 23 (DarusSalam) & Hadith 23 (Hasan)