। ॥ ५२४ ॥
In plain words
On the strength of direct experience, and by reasoning, and from śruti as well — and śruti says it in just these words: "You are the Self, and 'son' is only your name."
Close to the Sanskrit
And also from the force of direct experience, also from reasoning, also from śruti; and thus does śruti speak: "You are indeed the Self, bearing the name 'son'."