Whenever Messenger of Allah ﷺ went to answer the call of nature, I along with another boy from us used to go behind him with a tumbler full of water.  

سَمِعْتُ أَنَسًا يَقُولُ كَانَ رَسُولُ اللَّهِ ﷺ إِذَا خَرَجَ لِحَاجَتِهِ تَبِعْتُهُ أَنَا وَغُلاَمٌ مِنَّا مَعَنَا إِدَاوَةٌ مِنْ مَاءٍ  

"When the Messenger of Allah ﷺ would go to the toilet, I and another boy like me would bring a small leather vessel of water and he would clean himself with water."  

سَمِعْتُ أَنَسَ بْنَ مَالِكٍ يَقُولُ كَانَ رَسُولُ اللَّهِ ﷺ إِذَا دَخَلَ الْخَلاَءَ أَحْمِلُ أَنَا وَغُلاَمٌ مَعِي نَحْوِي إِدَاوَةً مِنْ مَاءٍ فَيَسْتَنْجِي بِالْمَاءِ  

[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»  

"When the Messenger of Allah ﷺ would go to the toilet, I and another boy like me would bring a small leather vessel of water and he would clean himself with water." (Using translation from Nasāʾī 45)  

سَمِعْتُ أَنَسَ بْنَ مَالِكٍ يَقُولُ كَانَ رَسُولُ اللهِ ﷺ «إِذَا دَخَلَ الْخَلَاءَ أَحْمِلُ أَنَا وَغُلَامٌ مَعِي نَحْوِي إِدَاوَةً مِنْ مَاءٍ فَيَسْتَنْجِي بِالْمَاءِ»