Alqama and Aswad reported
A person stayed in the house of A'isha and in the morning began to wash his garment. A'isha said: In case you saw it (i. e. drop of semen), it would have served the purpose (of purifying the garment) if you had simply washed that spot; and in case you did not see it, it would have been enough to sprinkle water around it, for when I saw that on the garment of the Messenger of Allah (ﷺ). I simply scraped it off and he offered prayer, while putting that on.
Al-Aawad and Hammam reported A'isha as saying
I used to scrape off the (drop of) semen from the garment of the Messenger of Allah (ﷺ).
Qutaiba b. Sa'id, Ishaq b. Ibrahim, Ibn Abi 'Aruba, Abu Ma'shar, Abu Bakr b. Abu Shaiba, Mansur and Mughira have all transmitted from Ibrahim, who transmitted it on the authority of A'isha's narration pertaining to the scraping off of the (drop) of semen from the garment of the Messenger of Allah (ﷺ) like the hadith of Khalid on the authority of Abu Ma'shar.
Hammam narrated the hadith from A'isha like the (above-mentioned) traditions.
'Amr b. Maimun said
I asked Sulaiman b. Yasar whether the semen that gets on to the garment of a person should be washed or not. He replied: A'isha told me: The Messenger of Allah (ﷺ) washed the semen, and then went out for prayer in that very garment and I saw the mark of washing on it.
Abu Kuraib, Ibn al-Mubarak, Ibn Abu Za'ida all of them narrated from Amr b. Maimun with the same chain of transmitters. Ibn Abu Za'ida narrated as was transmitted from Ibn Bishr that the Messenger of Allah (ﷺ) washed semen, and in the hadith transmitted on the authority of Ibn Mabarak and Abdul Wahid the words are
" She (A'isha) reported: I used to wash it from the garment of the Messenger of Allah (ﷺ)."
Abdullah b. Shihab al-Khaulani reported
I stayed in the house of 'A'isha and had a wet dream (and perceived its effect on my garment), so (in the morning) I dipped both (the clothes) in water. This (act of mine) was watched by a maid-servant of A'isha and she informed her. She (Hadrat A'isha) sent me a message: Whatprompted you to act like this with your clothes? He (the narrator) said: I told that I saw in a dream what a sleeper sees. She said: Did you find (any mark of the fluid) on your clothes? I said: No. She said: Had you found anything you should have washed it. Incase I found that (semen) on the garment of the Messenger of Allah (ﷺ) dried up, I scraped it off with my nails.