Wa `alaykum as-salamu wa rahmatullahi wa barakatuh.

 

In the Name of Allah, Most Gracious, Most Merciful.

 

All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.

 

Thank you for your good question.

 

Many scholars, including Imams Ash-Shafi`i and Ahmad, consider semen (mani) to be pure.

 

However, it is advised to wash it away if it is wet, and if dry, to scrub or erase it from body, cloth, or any other surface it may have come into contact with.

 

May Allah accept your and our good deeds, ameen.

 

Allah Almighty knows best.