Does the Prophet’s (peace and blessings be upon him) approval of some supplications heard from the Companions permit the invention of supplications other than those that were transmitted?

Question:
Honorable Shaykh, may Allah grant you success, do the hadiths in which the Prophet (peace and blessings be upon him) approved of some supplications heard from the Companions indicate that it is permissible to invent supplications on one’s own?

Answer:
No, what the Prophet (peace and blessings be upon him) did not approve of, you do not invent. If the Prophet (peace and blessings be upon him) approved of it, it is equivalent to what the Prophet (peace and blessings be upon him) said. As for coming and inventing something, that is not permissible.