Shaykh Muhammad Farooq Rafi
Benefits:
➊ Going so far for relieving oneself that a person becomes hidden from the sight of people is a recommended (mustahabb) act.
➋ It is permissible for a virtuous person to take service from his companions for his personal needs, and it is permissible to serve the righteous and people of virtue as a means of seeking blessing (tabarruk).
➌ Performing istinja (cleaning oneself after relieving oneself) with water is permissible and recommended (mustahabb), and using water for istinja is superior to sufficing with stones. There is a difference of opinion among the scholars on this issue, but the position of the majority of the early and later generations (salaf and khalaf), and the consensus (ijma‘) of all the muftis, is that using both water and stones for istinja is superior. Thus, to reduce impurity, stones should be used first, then water should be poured. Then, if the one performing istinja wishes to suffice with either of the two (water or stones), he may suffice with whichever he wishes, whether the other is present or not. Thus, sufficing with stones in the presence of water is permissible, and the reverse is also correct. However, if one must suffice with only one of the two (water or stones), then water is superior, because water truly cleanses the place of impurity, whereas complete purification is not achieved with stones; rather, they only reduce the impurity, and it is permissible to pray with such a degree of impurity remaining.
[نووي: 162/3]
➍ Also, the narration in Musnad al-Bazzar in which it is reported that the people of Quba used water after stones is weak.
Source: Sahih Ibn Khuzaymah: Commentary by Muhammad Farooq Rafee, Page: 87