Allah azza wa jal mentions the muttaqi who are pious:
Alif Lam Meem,
This is the Book about which there is no doubt, a guidance for those conscious of Allah –
Who believe in the unseen, establish prayer, and spend out of what We have provided for them,
And who believe in what has been revealed to you, [O Muhammad], and what was revealed before you, and of the Hereafter they are certain [in faith].
Those are upon [right] guidance from their Lord, and it is those who are the successful.
Surah Ale Imran
Yes, whoever fulfils his pledge and fears Allah much; verily, then Allah loves those who are Al-Muttaqun
The Messenger of Allah (ﷺ) said, “If a person says: ‘La ilaha illallahu wallahu Akbar (There is no true god except Allah and Allah is Greatest)’, his Rubb responds to him and affirms: ‘(Yes!) There is no true god except I, and I am the Greatest.’ When he says: ‘La ilaha illallahu Wahdahu la sharika Lahu (There is no true god except Allah, the One, He has no partner).’ Allah (SWT) affirms: ‘(Yes!) There is no true god except I. I have no partner.’ When he says: ‘La ilaha illallahu Lahul mulku wa Lahul-hamdu (the sovereignty belongs to Him and all the praise is due to Him).’ He (SWT) affirms: ‘(Yes!) There is no true god except I, Mine is the praise and to Me belongs the sovereignty.’ When he says: ‘La ilaha illallahu wa la hawla wa la quwwata illa Billah (There is no true god except Allah, and there is no might and power but with Allah).’ He (SWT) affirms: ‘(Yes!) There is no true god except I, and there is no might and power but with Me.”‘ The Messenger of Allah (ﷺ) added, “He who recites this during his illness and dies, will not be touched by the Fire (Hell).”
When the death of Abu Talib approached, Allah’s Messenger (ﷺ) came to him and said, “Say: La ilaha illallah, a word with which I will be able to defend you before Allah.”
Abu Sa’id Al-Khudri (May Allah be pleased with him) narrated that Allah’s Messenger (May the
peace and blessing of Allah be upon him) said: “Musa (Moses) (May the peace and blessing of Allah be upon him) said: ‘O my Rabb, teach
me something through which I can remember You and supplicate to You.’ Allah answered: ‘Say,
O Musa, La ilaha ilIa-Allah’. Musa said: ‘O my Rabb, all your slaves say these words’. Allah said: ‘O Musa, if the seven heavens and all they contain other than Me and the seven earths
as well, were all put in one side of a scale and La ilaha ilIa-Allah put in the other the latter would
overweigh them.'” [This Hadith has been reported by Ibn Hibban, and Al-Hakim declared it
Reference: Kitab at Tawheed
Allah – there is no deity except Him, the Ever-Living, the Sustainer of [all] existence. Neither drowsiness overtakes Him nor sleep. To Him belongs whatever is in the heavens and whatever is on the earth. Who is it that can intercede with Him except by His permission? He knows what is [presently] before them and what will be after them, and they encompass not a thing of His knowledge except for what He wills. His Kursi extends over the heavens and the earth, and their preservation tires Him not. And He is the Most High, the Most Great.
Book 9, Hadith 1020
O Allah Make our feet firm upon your Religion and grant us Wisdom, Make us of those whom it will be said, “Read, Ascend and Recite as you did in this world”.
Oh Allah you are perfect. Your words are perfect. Allow me to perfect my recitation and my salah with khushu to do justice to your perfection. Make me of Al Khashiu’n. Teach us your Book the way most pleasing to you. O You the most Forgiving, the most Merciful. Forgive us. Aameen ya Rab Alameen.
قُلْ إِنَّ صَلَاتِي وَنُسُكِي وَمَحْيَايَ وَمَمَاتِي لِلَّهِ رَبِّ الْعَالَمِينَ
لَا شَرِيكَ لَهُ ۖ وَبِذَٰلِكَ أُمِرْتُ وَأَنَا أَوَّلُ الْمُسْلِمِينَ
Say, “Indeed, my prayer, my rites of sacrifice, my living and my dying are for Allah, Lord of the worlds.
No partner has He. And this I have been commanded, and I am the first [among you] of the Muslims.”