Combining acts of obedience in a single intention

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Is it permissible to combine acts of obedience, such as the two rak'ahs after wudu' and the greeting of the mosque, in a single intention?

Answer:
Yes, no, no. His saying (peace and blessings be upon him) is the basis. So if he prays two rak'ahs, entering the mosque and praying two rak'ahs, he intends with them the greeting of the mosque, and he intends with them the sunnah of wudu', and he intends with them the early morning prayer in the forenoon, due to the generality of his saying (peace and blessings be upon him) . So the jurists say that whoever intends something, he gets what he intended and its voluntary additions and its worldly benefit. Even for him.
What he intended, and what is similar to it, or even less than it. As for what is higher and more elevated than it, that is not hidden. So if he prays intending the voluntary prayer, it does not count as the obligatory prayer, because the obligatory prayer is higher than the voluntary prayer. The obligatory prayer is higher than the voluntary prayer. Likewise, if he enters the mosque and the prayer is the obligatory prayer, and he joins the obligatory prayer, it suffices for the voluntary prayer, and it suffices for the greeting of the mosque, because the greeting of the mosque is lower than the obligatory prayer.