פירוש על מלכים א 1:37

Than the throne of my lord Dovid Hamelech. From this [we derive] that a father is not envious of his son.³⁰See Maseches Sanhedrin 105b.

and make his throne greater than the throne of my lord King David: We learn from this that this is not with respect to the kingship, but this is that the will of the king is for his son to succeed even more than him.