Say (O Muhammad SAW): "If the Most Beneficent (Allah) had a son (or children as you pretend), then I am the first of Allah's worshippers [who deny and refute this claim of yours (and the first to believe in Allah Alone and testify that He has no children)]." [Tafsir At-Tabari].
言ってやるがいい。「もし慈悲深き御方が子を持たれるなら，このわたしがその最初の崇拝者となる。