Is saying "One supplication is not enough... Donate, even if it's with two supplications" a form of transgression in supplication, an intrusion into the knowledge of the unseen, and mockery?

The phrase mentioned, "Do not withhold from us a supplication in our absence, for perhaps one of you is of a higher status with Allah than me," is not a supplication itself, but rather a request for supplication. Therefore, it is not considered an transgression in supplication. It does not involve interfering with knowledge of the unseen, as its intent is to seek an abundance of good and to be persistent in requesting, just as Sa'd ibn 'Ubadah did with the Prophet, peace be upon him. Nor does it mock the ritual of supplication; rather, it stems from an increase in earnestness and a great desire, which is permissible, even if it is not the most preferable.