Explanation of the Book of Purification-15

The Shaykh : Then he said: "And from Busrah bint Safwan (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said:

He who touches his penis should perform ablution.

من مس ذكره فليتوضأ

Sunan Abi Dawud 181Sahih (Al-Albani)

"
The conditional particle indicates generality.
And his saying: The lam in his saying: is the lam of command, which conveys several benefits:
One of them is that if a man touches his private part, he is commanded to perform wudu, based on his saying: . Is this command for obligation or for recommendation?
It is possible that it is for obligation, and it is possible that it is for recommendation. I have started with the benefits, but in reality, we must explain before that:
His saying: Its apparent meaning is that there is no difference between touching it for desire or for other than desire, and between touching it intentionally or unintentionally, because a person might touch his private part unintentionally, such as if he intended to lift his lower garment or lift his trousers and touched it. This is unintentional. So the apparent meaning of the hadith is that there is no difference between intending it or not.
And it can be said: His saying: is apparent in that the intended meaning is the intention to touch. But the jurists (may Allah have mercy on them), the Hanbali jurists, say: If he touches his private part, even if unintentionally, his wudu is invalidated.
And his saying:
And his saying: only mentioned wudu, so istinja' (cleaning oneself) is not obligatory, because istinja' is only obligatory from urine or feces.