Is supplication in the obligatory prayer during bowing and prostration general or specific?

The Shaykh : ...and so on. Whatever the Sunnah has come with in a general manner is general, such as: As for what the Sunnah has not come with, you have the choice: if you wish, you may make it general; if you wish, you may make it specific; if you wish, you may supplicate to Allah the Exalted for matters of this world; if you wish, you may supplicate to Allah for matters of the Hereafter; and if you wish, you may supplicate to Allah for both, due to the generality of the saying of the Prophet (peace and blessings be upon him and his family): .