Pre-cum
Question :

Is the liquid that comes out of the penis before ejaculation najis or tahir?

Answer :

Yes, it is Tahir.

Semen
Question :

Is the ejaculated semen from the man’s penis najis?

Answer :

Yes, it is najis.

Najasah
Question :

Is the fluid discharged by the woman during sexual intercourse, but before any ejaculation, to be considered as najis?

Answer :

The said discharge is tahir.