´Abu Hurairah narrated that :` the Prophet said: "Jibril came to me and he said: 'O Muhammad! When you perform wudu then perform Nadh.'"
Related hadith on this topic
Explanation & Benefits
Shaykh Dr. Abdur Rahman Freywai
English Commentary:
1:
The benefit of this is that it removes the doubt that perhaps the moisture found on the garment near the private part might be from drops of urine. And it is evident that if such moisture is found after ablution (wudu), this doubt will arise. However, if the moisture is present after urination but before ablution, then it will certainly be from urine.
2:
Due to Hasan ibn Ali Naufali Hashimi, this hadith of Abu Hurairah radi Allahu anhu is weak. However, in this chapter, the action of the Messenger (sallallahu alayhi wa sallam) is established from other Companions.
Note:
(The narrator Hasan ibn Ali Hashimi is weak. The hadith in wording is not established. This action is established from the deed of the Messenger (sallallahu alayhi wa sallam). See: al-Da‘ifah 1312, and al-Sahihah 841)
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 50