We may among ourselves make fun out of humor, and this will be nice and very good; but this is not proper for God – be glorified.
Some of the idolaters among the people of Mohammed denied him, and said: "God is only playing and making fun when he has sent you as an apostle".
Therefore this aya was revealed: which means if God intended to make fun, He would have sent them an angel who is a spiritual creature whom they could not perceive; but on the contrary He sent them an apostle out of themselves to speak to them in the same their language so that they might understand.
This is in the Quran 21: 16-18وَمَا خَلَقْنَا السَّمَاء وَالْأَرْضَ وَمَا بَيْنَهُمَا لَاعِبِينَ . لَوْ أَرَدْنَا أَن نَّتَّخِذَ لَهْوًا لَّاتَّخَذْنَاهُ مِن لَّدُنَّا إِن كُنَّا فَاعِلِينَ . بَلْ نَقْذِفُ بِالْحَقِّ عَلَى الْبَاطِلِ فَيَدْمَغُهُ فَإِذَا هُوَ زَاهِقٌ وَلَكُمُ الْوَيْلُ مِمَّا تَصِفُونَThe explanation:
(We created not the heavens and the earth and all that is between them, merely for making fun.
Had We willed to do amusement, We would have done it of [the angels in] Our [neighborhood], if We had done [so.]
But We do hurl the true against the false, and he [: the angel of death] will nock out [the chief of the disbelievers on] his brain, and soon he will perish; but woe be to you [associaters] for that you attribute [to Us: concerning the amusement and playing.] )
Oh no, Mohammad wasn't mentally ill, noooooooooooo... :roll: