{ Have you all considered what you ejaculate? } Al-waqi'a 58

...Then He tells of the way He creates, so that they might consider; He says: { Have you all considered what you ejaculate? } ; that is, the semen drop, the gushing fluid.
Tafsir Muqatil ibn Suleiman

{ Have you all considered what you ejaculate? } : the semen drops that you pour into wombs.