﴿ خَلَقَ ٱلْإِنسَٰنَ مِن نُّطْفَةٍۢ فَإِذَا هُوَ خَصِيمٌۭ مُّبِينٌۭ ﴾

“He creates man out of a [mere] drop of sperm: and lo! this same being shows himself endowed with the power to think and to argue!”

(He hath created man from a drop of fluid, yet behold! he is an open opponent) [16:4]. This verse was revealed about Ubayy ibn Khalaf al-Jumahi when he brought decaying bones to the Messenger of Allah, Allah bless him and give him peace, and then said: �O Muhammad, do you think Allah will bring this to life after its decay?�. Something similar to this verse is Allah�s words in Surah Yasin (Hath not man seen that We have created him from a drop of seed? Yet lo! He is an open opponent�) [36:77] up to the end of the Surah. This verse was revealed on the occasion of this incident.