You also ask about the saying of Allah the Exalted in Surat al-Ma'idah: "Indeed, they have disbelieved who say, 'Allah is the third of three.'" Who are those who said that, O honorable Shaykh?
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The questioner : You also inquire about the noble verse in Surat al-Ma'idah: I seek refuge in Allah from the accursed Shaytan: [Al-Ma'idah 5:73] Who are those who said that, O honorable Shaykh?
The Shaykh : Those who said that are the Christians. They said: "Allah is the third of three: Allah, the Messiah son of Mary, and his mother." So Allah the Exalted declared them disbelievers because of that, for they made a partner with Allah. And Allah, Glorified and Exalted is He, is one God, as Allah the Exalted said:[At-Tawbah 9:31].
They have certainly disbelieved who say, "Allah is the third of three."
لَقَدْ كَفَرَ الَّذِينَ قَالُوا إِنَّ اللَّهَ ثَالِثُ ثَلاثَةٍThe Shaykh : Those who said that are the Christians. They said: "Allah is the third of three: Allah, the Messiah son of Mary, and his mother." So Allah the Exalted declared them disbelievers because of that, for they made a partner with Allah. And Allah, Glorified and Exalted is He, is one God, as Allah the Exalted said: