[Machine] There is no deity but Allah, and Allah is the greatest.
«لَا إِلَهَ إِلَّا اللهُ وَاللهُ أَكْبَرُ»
"The Messenger of Allah said: 'Prompt your dying ones to say La ilaha illahllah (there is none worthy of worship except Allah)."'
قَالَ رَسُولُ اللَّهِ ﷺ لَقِّنُوا هَلْكَاكُمْ قَوْلَ لاَ إِلَهَ إِلاَّ اللَّهُ
"The final words of the Adhan are: 'Allahu Akbar, Allahu Akbar; La ilaha illallah (Allah is the Greatest, Allah is the Greatest, there is none worthy of worship except Allah.)'"
آخِرُ الأَذَانِ اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ لاَ إِلَهَ إِلاَّ اللَّهُ
"The final words of the Adhan of Bilal were: 'Allahu Akbar, Allahu Akbar, Allahu Akbar; La ilaha illallah (Allah is the Greatest, Allah is the Greatest, there is none worthy of worship except Allah.)'"
كَانَ آخِرُ أَذَانِ بِلاَلٍ اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ لاَ إِلَهَ إِلاَّ اللَّهُ
"The final words of the Adhan of Bilal were: 'Allahu Akbar, Allahu Akbar, Allahu Akbar; La ilaha illallah (Allah is the Greatest, Allah is the Greatest, there is none worthy of worship except Allah.)'" (Using translation from Nasāʾī 650)
كَانَ آخِرُ أَذَانِ بِلَالٍ «لَا إِلَهَ إِلَّا اللهُ وَاللهُ أَكْبَرُ»
"The final words of the Adhan are: 'Allahu Akbar, Allahu Akbar; La ilaha illallah (Allah is the Greatest, Allah is the Greatest, there is none worthy of worship except Allah.)'" (Using translation from Nasāʾī 649)
كَانَ آخِرَ الْأَذَانِ اللهُ أَكْبَرُ اللهُ أَكْبَرُ لَا إِلَهَ إِلَّا اللهُ
the Prophet ﷺ said: "(There are) four that are the best of words, and it does not matter with which you begin: Subhan-Allah, wal-Hamdu-Lillah, wa la ilaha illallah, wa Allahu Akbar (Glory is to Allah, praise is to Allah, none has the right to be worshiped but Allah and Allah is the Most Great)." (Using translation from Ibn Mājah 3811)
"أفْضلُ الكلام: سبحانَ الله، والحمد لله، ولا إله إلا الله، والله أكبر" .