Mishkat al-Masabih 3 Purification كتاب الطهارة 72

وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا أَتَى الْخَلَاءَ أَتَيْتُهُ بِمَاءٍ فِي تَوْرٍ أَوْ رَكْوَةٍ فَاسْتَنْجَى ثُمَّ مَسَحَ يَدَهُ عَلَى الْأَرْضِ ثُمَّ أَتَيْتُهُ بِإِنَاءٍ آخَرَ فَتَوَضَّأَ. رَوَاهُ أَبُو دَاوُد وروى الدَّارمِيّ وَالنَّسَائِيّ مَعْنَاهُ

Abu Huraira said, “When the Prophet went to the privy I brought him water in a small vessel or a skin and he cleaned himself, after which he wiped his hand on the ground. I then brought him another vessel and he performed ablution.” Abu Dawud transmitted it, and Darimi and Nasa’i transmitted something similar.