"‏ مَنْ قَالَ لاَ إِلَهَ إِلاَّ اللَّهُ وَاللَّهُ أَكْبَرُ ‏.‏ صَدَّقَهُ رَبُّهُ فَقَالَ لاَ إِلَهَ إِلاَّ أَنَا وَأَنَا أَكْبَرُ ‏.‏ وَإِذَا قَالَ لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ ‏.‏ قَالَ يَقُولُ اللَّهُ لاَ إِلَهَ إِلاَّ أَنَا وَأَنَا وَحْدِي ‏.‏ وَإِذَا قَالَ لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ لاَ شَرِيكَ لَهُ ‏.‏ قَالَ اللَّهُ لاَ إِلَهَ إِلاَّ أَنَا وَحْدِي لاَ شَرِيكَ لِي ‏.‏ وَإِذَا قَالَ لاَ إِلَهَ إِلاَّ اللَّهُ لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ ‏.‏ قَالَ اللَّهُ لاَ إِلَهَ إِلاَّ أَنَا لِيَ الْمُلْكُ وَلِيَ الْحَمْدُ ‏.‏ وَإِذَا قَالَ لاَ إِلَهَ إِلاَّ اللَّهُ وَلاَ حَوْلَ وَلاَ قُوَّةَ إِلاَّ بِاللَّهِ ‏.‏ قَالَ اللَّهُ لاَ إِلَهَ إِلاَّ أَنَا وَلاَ حَوْلَ وَلاَ قُوَّةَ إِلاَّ بِي ‏.‏ وَكَانَ يَقُولُ مَنْ قَالَهَا فِي مَرَضِهِ ثُمَّ مَاتَ لَمْ تَطْعَمْهُ النَّارُ ‏"

the Prophet (ﷺ) said: “Whoever says: ‘There is none worthy of worship except Allah, and Allah is the Greatest, (Lā ilāha illallāh, wa Allāhu akbar)’ His Lord affirms his statement and says: ‘There is none worthy of worship except Me, and I am the Greatest,’ and when he say: ‘There is none worthy of worship except for Allah, Alone, (Lā ilāha illallāh, waḥdahu)’ Allah says: ‘There is none worthy of worship except for Me and I am Alone.’ And when he say: ‘There is none worthy of worship except for Allah, Alone, without partner, (Lā ilāha illallāh, waḥdahu lā sharīka lahu)’ Allah says: ‘There is none worthy of worship except Me, Alone, I have no partner.’ And when he say: ‘There is none worthy of worship except for Allah, to Him belongs all that exists, and to Him is the praise, (Lā ilāha illallāh, lahul-mulku wa lahul-ḥamdu)’ Allah says: ‘There is none worthy of worship except Me, to Me belongs all that exists, and to Me is the praise.’ And when he says: ‘There is none worthy of worship except Allah, and there is no might or power except by Allah, (Lā ilāha illallāh, wa lā ḥawla wa lā quwwata illā billāh)’ Allah says: ‘There is none worthy of worship except Me, and there is no might or power except by Me.’” And he used to say: “Whoever says it in his illness, then dies, the Fire shall not consume him.”