Sayyidah Aishah (may Allah be pleased with her) said: If I found semen on the clothes of the Prophet (peace and blessings be upon him), I would scrape it off.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4164
Alqamah and al-Aswad (may Allah have mercy on them) said that a guest came to Sayyidah Aishah (may Allah be pleased with her), and in the morning he was washing his clothes. Sayyidah Aishah (may Allah be pleased with her) said: It would have been enough for you to wash only that spot. If you could not see the spot, you should have sprinkled water around it. When I saw semen on the clothes of the Prophet (peace and blessings be upon him), I would scrape it off, and he (peace and blessings be upon him) would pray in them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4165
Sayyidah Aishah (may Allah be pleased with her) said: I used to scrape semen off the clothes of the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) would pray in them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4166
Al-Aswad said: I was cleaning impurity from my clothes when Sayyidah Aishah (may Allah be pleased with her) saw me and said: "What is this?" I said: "Janabah (the discharge of major impurity) got onto my clothes." She (may Allah be pleased with her) said: "When I saw janabah on the clothes of the Prophet (peace and blessings be upon him), I would only scrape it off."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4167
Hammam said that a guest came to Aishah (may Allah be pleased with her), and she (may Allah be pleased with her) sent a message to him inviting him. It was said: He has become junub (in a state of major impurity) and is washing his clothes. Aishah (may Allah be pleased with her) said: Why is he washing them! I used to simply scrape semen off the clothes of the Messenger of Allah (peace and blessings be upon him).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4168
Sayyidah Aishah (may Allah be pleased with her) said: I used to scrape semen off the clothes of the Prophet (peace and blessings be upon him), then he (peace and blessings be upon him) would pray in them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4169
Sayyidah Aishah (may Allah be pleased with her) said: I remember that I used to wipe semen off the clothes of the Prophet (peace and blessings be upon him), and when it had dried, I would scrape it off.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4170
Abdullah bin Shihab al-Khawlani said: I was a guest of Sayyidah Aishah (may Allah be pleased with her). I became junub, so I dipped my clothes in water. A slave girl of Sayyidah Aishah (may Allah be pleased with her) saw me and informed her. Sayyidah Aishah (may Allah be pleased with her) sent her to me, then said: "What made you do that with your clothes?" I said: "I saw what a sleeper sees." Sayyidah Aishah (may Allah be pleased with her) asked: "Did you see any trace?" I said: "No." She said: "Had you seen something, you would wash it. I remember that I used to scrape dried semen off the clothes of the Prophet (peace and blessings be upon him) with my fingernails."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4171
Sayyidah Aishah (may Allah be pleased with her) said: I remember that I used to scrape janabah off the clothes of the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) would not wash that spot.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4173
Sayyidah Aishah (may Allah be pleased with her) said that the Prophet (peace and blessings be upon him) used to remove semen from his clothes with (a stick of) the idhkhir herb, then pray in them.
(b) Sayyidah Aishah (may Allah be pleased with her) said: When the Prophet (peace and blessings be upon him) saw semen on his clothes, he would scrape it off, then pray in those same clothes.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4174
Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said regarding semen that gets onto clothes: Remove it from yourself. One of the narrators said: Clean it with a stick of idhkhir, for semen is like spittle or mucus.
This is authentic from Ibn Abbas as his own saying; it has also been narrated as marfu' (from the Prophet), but its being marfu' is not authentic.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4175
Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said that the Prophet (peace and blessings be upon him) was asked about semen that gets onto clothes, and he (peace and blessings be upon him) said: "Semen is like spittle or mucus; it is enough for you to wipe it off with a piece of cloth or with idhkhir grass."
Waki' narrated it from Ibn Abi Layla as mawquf (the words of Ibn Abbas), and that is the correct version.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4176
Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him): when semen got onto his clothes, if it was wet he would wipe it off, and if it was dry he would scrape it off, then he would pray in those same clothes.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4178