Whenever Messenger of Allah ﷺ went to answer the call of nature, I along with another boy used to accompany him with a tumbler full of water. (Hisham commented, "So that he might wash his private parts with it.)"  

سَمِعْتُ أَنَسَ بْنَ مَالِكٍ يَقُولُ كَانَ النَّبِيُّ ﷺ إِذَا خَرَجَ لِحَاجَتِهِ أَجِيءُ أَنَا وَغُلاَمٌ مَعَنَا إِدَاوَةٌ مِنْ مَاءٍ يَعْنِي يَسْتَنْجِي بِهِ  

Whenever the Prophet ﷺ went for answering the call of nature, I and another boy used to go after him with a staff, a stick or a short spear (or stick) and a tumbler of water and when he finished from answering the call of nature we would hand that tumbler of water to him.  

كَانَ النَّبِيُّ ﷺ إِذَا خَرَجَ لِحَاجَتِهِ تَبِعْتُهُ أَنَا وَغُلاَمٌ وَمَعَنَا عُكَّازَةٌ أَوْ عَصًا أَوْ عَنَزَةٌ وَمَعَنَا إِدَاوَةٌ فَإِذَا فَرَغَ مِنْ حَاجَتِهِ نَاوَلْنَاهُ الإِدَاوَةَ  

[Machine] I heard Anas saying that when the Messenger of Allah ﷺ wanted to relieve himself, he would ask me and another boy to bring him a container of water.  

سَمِعْتُ أَنَسًا يَقُولُ كَانَ رَسُولُ اللهِ ﷺ إِذَا خَرَجَ لِحَاجَتِهِ نَجِيءُ أَنَا وَغُلَامٌ مِنَّا بِإِدَاوَةٍ مِنْ مَاءٍ  

[Machine] I heard Anas saying, "The Messenger of Allah ﷺ used to take me with him when he went out for his personal needs, and one of us would bring a container of water."  

قَالَسَمِعْتُ أَنَسًا يَقُولُ كَانَ رَسُولُ اللهِ ﷺ إِذَا خَرَجَ لِحَاجَتِهِ نَجِيءُ أَنَا وَغُلَامٌ مِنَّا بِإِدَاوَةٍ مِنْ مَاءٍ  

[Machine] "I heard Anas ibn Malik saying, 'When the Messenger of Allah ﷺ finished using the toilet, I and a young boy from the Ansar used to bring him a vessel of water for purification, and he would perform istinja with it.'"  

سَمِعْتُ أَنَسَ بْنَ مَالِكٍ يَقُولُ «كَانَ رَسُولُ اللَّهِ ﷺ إِذَا خَرَجَ مِنْ حَاجَتِهِ أَجِيءُ أَنَا وَغُلَامٌ مِنَ الْأَنْصَارِ بِإِدَاوَةٍ مِنْ مَاءٍ فَيَسْتَنْجِي بِهِ»