Belief In Hereafter

Abu Hurairah (RA) narrates that Rasulullah (SAW) in a Hadith Qudsi said:

When Allah had created Paradise, He said to Jibrail (AS): Go and visit it! So he went and saw it, returned, and submitted: O my Rabb! By Your Might and Honour, none shall hear about it except that he shall (strive to) enter it! Then (Allah) surrounded it with adversities (adherence to Shari'ah, which at times is against personal desires) and ordered: O Jibrail! Go and visit it (again). So he went, saw it, and returned; then submitted: O my Rabb! By Your Might and Honour, indeed I fear that none shall (be able to) enter it!

Then, Rasulullah (SAW) said: When Allah created the Fire (of Hell) then He said: O Jibrail! Go and visit it! So he went and saw it, returned and submitted: O my Rabb! By your Might and Honour, none shall hear about it except that he shall (strive to) avoid it! Then (Allah) surrounded it with carnal desires, and ordered: O Jibrail! Go and visit it (again)! So he went, saw it. And returned, then submitted: O my Rabb! By Your Might, Honour and Majesty; I fear that none shall (be able to) avoid it!

(Abu Dawud)

Picked from Muntakhab Ahadith(idara)/Point of Kalimah Tayyibah/ Hadits 173/pg97