Allah, the Exalted, says:
“Truly, the Muttaqun (the pious and righteous persons) will be amidst Gardens and water-springs (Jannah). (It will be said to them): `Enter therein (Jannah), in peace and security.’ And We shall remove from their breasts any deep feeling of bitterness (that they may have). (So they will be like) brothers facing each other on thrones. No sense of fatigue shall touch them, nor shall they (ever) be asked to leave it.” (Al-Hijr 15:45-48)
“(It will be said to the believers of Islamic Monotheism): ‘My slaves! No fear shall be on you this Day, nor shall you grieve. (You) who believed in Our Ayat (proofs, verses, lessons, signs, revelations, etc.) and were Muslims (i.e., who submit totally to Allah’s Will, and believe in the Oneness of Allah). Enter Jannah, you and your wives, in happiness.’ Trays of gold and cups will be passed round them; (there will be) therein all that inner-selves could desire, and all that eyes could delight in and you will abide therein forever. This is the Jannah which you have been made to inherit because of your deeds which you used to do (in the life of the world). Therein for you will be fruits in plenty, of which you will eat (as you desire).” (Az-Zukhruf 43:68-73)
“Verily, the Muttaqun (the pious), will be in place of security (Jannah). Among Gardens and springs. Dressed in fine silk and (also) in thick silk, facing each other. So (it will be). And We shall marry them to Hur (fair females) with wide, lovely eyes. They will call therein for every kind of fruit in peace and security. They will never taste death therein except the first death (of this world), and He will save them from the torment of the blazing Fire. As a bounty from your Rubb! That will be the supreme success!” (Ad-Dukhan 44:51-57)
“Verily, Al-Abrar (the pious and righteous) will be in Delight (Jannah). On thrones, looking (at all things). You will recognise in their faces the brightness of delight. They will be given to drink of pure sealed wine. The last thereof (that wine) will be the smell of musk, and for this let (all) those strive who want to strive (i.e., hasten earnestly to the obedience of Allah). It (that wine) will be mixed with Tasnim. A spring whereof drink those nearest to Allah.” (Al-Mutaffifin 83:22-28)
The Qur’anic Ayat on the subject are many and well-known.
Abu Hurairah (May Allah be pleased with him) said: The Messenger of Allah (ﷺ) said, “Allah, the Exalted, has said: `I have prepared for my righteous slaves what no eye has seen, no ear has heard, and the mind of no man has conceived.’ If you wish, recite:
‘No person knows what is kept hidden for them of joy as a reward for what they used to do.’‘‘ (As-Sajdah 32:17) [Al-Bukhari and Muslim].
Commentary: About the gifts and pleasures of Jannah, here a Hadith has been stated in the Words of Allah. The subject matter is confirmed from the Verse of the Qur’an given in the text of the Hadith.
(Riyad Us-Saliheen, Forgiveness, Chapter 372, No. 1881)