Tirmidhi

1:
That is:
Make every effort to attain this protection of Allah,
that is, strive to perform the Fajr prayer in congregation, so that this protection of Allah will not slip from your hands,
in sha Allah.

Hadith Commentary: Benefits and Issues:
From the aforementioned ahadith, it is established that one should not urinate in standing water. The Prophet (sallallahu alayhi wa sallam) did not specify a small or large quantity for standing water. He stated unconditionally that one should not urinate in stagnant water. However, this does not mean that one may urinate in flowing water. Since, generally, this situation arises with standing water, the Prophet (sallallahu alayhi wa sallam) specified it.

Similarly, after urinating in a vessel, to pour or throw it into standing water is also against the objective and spirit of the Shari‘ah. Therefore, it is extremely astonishing what is attributed to Dawud Zahiri, that the prohibition is specific to urinating, and that defecating or urinating in a vessel and then throwing it into standing water is not prohibited. (Sharh Nawawi: 1/1138)

This hadith also pertains to manners and ethics. To raise the issue of whether the water is little or much under this hadith is contrary to its actual purpose. Therefore, whether the standing water is little or much, in both cases, one should not urinate or defecate in it, because one may need to use that water for bathing, so then from where will he bathe?

Imam Nawawi rahimahullah writes that urinating in it is prohibited in every situation, whether one needs to bathe or not. (Sharh Nawawi: 1/138)

The objective is that urinating in water is contrary to manners and ethics. The specification of “standing” (rakid) water is only because if the need to bathe arises, then a person will feel aversion and disgust towards it.

Therefore, Imam Nawawi rahimahullah writes: By consensus, it is prohibited and disliked to urinate near a river if the urine can flow into it. (Sharh Nawawi: 1/138)