A Time for this and a Time for that

From Hanzalah al-Usayyidee who said: Abu Bakar met and asked: How are you O Hanzalah? I replied: Hanzalah is guilty of hyprocrisy! He said; free is Allah and far removed from all defects! What are you saying? I said: When you are with Allah’s Messenger pbuh and he reminds us of the Fire and Paradise it is as if we are seeing it with our own eyes. Then when we depart from Allah’s Messenger pbuh and attend to our wives, our children and our business, then much of this slips from our minds. Abu Bakar said: By Allah we also experience the same. So I went with Abu Bakar until we entered upon Allah’s Messenger pbuh, I said: Hanzalah is guilty of hypocrisy O Messenger of Allah pbuh! So Allah’s Messenger pbuh said: And how is that? I said: When we are with you, you remind us of the Fire and of Paradise and it is as if we are seeing it with our eyes. Then when we depart from you and attend to our wives, children and business then much of this slips from our minds. So Allah’s Messenger pbuh said: By Him in whose Hand is my soul if you remained continually as you are when you are with me and in remembering (Allah) then the angels would shake hands with you upon your beds and upon your roads. But O Hanzalah, (there is) a time for this and atime for that, (there is) a time for this and a time for that, (there is) a time for this and a time for that.
Hadis narrated by Muslim)

So both of this times are regulated by the order of Allah, as has preceded. His time for serious matters is regulated according to the Book (Quran) and the Sunnah, and his jesting is kept free of anything forbidden and accompanied only by that which Allah has prescribed.

So he does not, through negligence, allow his jesting to become a way in which he falls into sin. Indeed how he could he do this when He does not Take Sins Lightly.