Allah swt said,

 فَٱذْكُرُونِىٓ أَذْكُرْكُمْ وَٱشْكُرُوا۟ لِى وَلَا تَكْفُرُونِ  

Fazkurooneee azkurkum washkuroo lee wa laa takfuroon 

So remember Me; I will remember you. And be grateful to Me and do not deny Me.(Quran - 2:152)

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And He swt said,

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ ٱذْكُرُوا۟ ٱللَّهَ ذِكْرًا كَثِيرًا

Yaaa aiyuhal lazeena aamanuz kurul laaha zikran kaseera

O ye who believe! Celebrate the praises of Allah, and do this often; (Quran - 33:41)

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And He swt said,

وَٱلذَّٰكِرِينَ ٱللَّهَ كَثِيرًا وَٱلذَّٰكِرَٰتِ أَعَدَّ ٱللَّهُ لَهُم مَّغْفِرَةً وَأَجْرًا عَظِيمًا ... 

...waz zaakireenal laaha kaseeranw waz zaakiraati a'addal laahu lahum maghfiratanw wa ajran 'azeemaa  

...And the men and women who remember Allah frequently, Allah has prepared for them forgiveness and great reward. (Quran - 33:35)

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And He swt said,

وَٱذْكُر رَّبَّكَ فِى نَفْسِكَ تَضَرُّعًا وَخِيفَةً وَدُونَ ٱلْجَهْرِ مِنَ ٱلْقَوْلِ بِٱلْغُدُوِّ وَٱلْءَاصَالِ وَلَا تَكُن مِّنَ ٱلْغَٰفِلِينَ  

Wazkur Rabbaka fee nafsika tadarru'anw wa kheefatanw wa doonal jahri minal qawli bilghuduwwi wal aasali wa laa takum minal ghaafileen

And do thou (O reader!) Bring thy Lord to remembrance in thy (very) soul, with humility and in reverence, without loudness in words, in the mornings and evenings; and be not thou of those who are unheedful. (Quran - 7:205)

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The Prophet pbuh said, "He who remembers his Lord and he who does not remember his Lord are like the living and the dead."

(Al-Bukhari)

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And he (saw) said, "Shall I not inform you of the best of your works, the purest of them with your Master (Allah), the loftiest of them in your stations, the thing that is better for you than spending gold and silver (in charity), and better for you than meeting your enemies and slaying them and being slain by them?"

They (the companions) said, "Of course!"

He (saw) said, "Remembrance of Allah, the Most High."

(At-Tirmidhi)

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And he (saw) said, "Allah the Most High says, 'I am with my slave when he thinks of Me and I am with him when he mentions Me. For if he mentions Me to himself, I mention him to Myself; and if he mentions Me in a gathering, I mention him in superior gathering. If he approaches Me by a hand's width, I approach him by an arm's length, I approach him by two arms length. And if he comes to me walking, I hasten to him swiftly.'"

(Al-Bukhari)

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Abdullah bin Busr (ra) said that a man asked the Prophet (pbuh), "O Messenger of Allah! Verily, the sanctions of Islam have become too numerous for me (to perform them all). Inform me of something (simple) that I may adhere to." 

The Prophet (pbuh) said, "Let your tongue always be moist with the rememberance of Allah."

(At-Tirmidhi)

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And he (pbuh) said, "Whoever reads one letter from the Book of Allah, will receive one Hasanah (reward for a good deed), and one Hasanah comes with ten like it. I do not say that Alif-Lam-Mim is a letter. Indeed Alif is a letter, and Lam is a letter, and Mim is a letter."   

(At-Tirmidhi)

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Uqbah bin Amir (ra) said: 

The Messenger of Allah (pbuh) came out (from his house) and we were of the porch (As-Suffah). So he (pbuh) said, "Who of you would like to go out in the morning everyday to the valley of Buthan or Al-'Aqeeq and come back with two large she camels without committing any sin or severing any family ties?" 

We replied, "O Messenger of Allah! All of us would like this." 

So he (pbuh) said, "Would one of you not go to the Masjid and learn to recite two Verses from the Book of Allah, the Mighty and Majestic? That would be better than two she camels. And three Verses would be better for him than three she-camels. And four Verses would be better than four she-camels, and whatever their number may be of camels."  

(Muslim)

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And he (pbuh) said, "Whoever sits and does not mention the Name of Allah (before he rises) will find it a cause of sorrow from Allah. Whoever lies down to sleep and does not mention the name of Allah before rising, will find it a cause of sorrow from Allah." 

(Abu Dawud)

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And the Prophet (saw) said, "No people sit in an assembly without mentioning Allah, and without asking Allah for blessings on their Prophet, except that it will be a cause of sorrow upon them. Thus if He (Allah) wishes He will punish them, and if He wishes He will forgive them."   

(At-Tirmidhi)

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And he (pbuh) said, "No people may rise from an assembly in which they have failed to mention the Name of Allah without it being as if they were getting off a dead donkeys rotting back, and it would be a cause of grief for them."  

(Abu Dawud)