How authentic are these two verses from the perspective of 'aqidah: If my thanks for Allah's blessing is a blessing, then for Him is due thanks for such a blessing, so how can the reaching of thanks be achieved except by His grace, even if the days lengthen and life continues?

Question:
He says: Honorable Shaykh, may Allah grant you success, how authentic are these two verses from the perspective of 'aqidah: If my thanks for Allah's blessing is a blessing, then for Him is due thanks for such a blessing, so how can the reaching of thanks be achieved except by His grace, even if the days lengthen and life continues?

Answer:
It is correct. This is an acknowledgment of Allah's favor upon you, and that if you thanked Allah, the grace in that belongs to Allah; He is the One who guided you to this thanks. Yes.