The Form of Supplication in Correspondence: May Allah Preserve Him or May Allah Keep Him Safe

Question:
Honorable Shaykh, is it better for a person to write "may Allah preserve him" in the past tense in his letters, or "may Allah keep him safe" in the present tense?

Answer:
By Allah, what is in the books and what the scholars use is "may Allah have mercy on him," "may Allah preserve him," and "may Allah keep him safe." But some young people came with a new phrase: "may Allah have mercy on him," "may Allah forgive him," and so on. There is no need for this; there is no need for this change. What is the reason for it? Yes, all the books are full of "may Allah have mercy on him." They say "may Allah have mercy on him" like this, "may Allah have mercy on him." They did not say "may Allah have mercy on him" in the present tense.
That we do not contradict the phrases of the Salaf. And I have told you more than once: do not contradict the phrases of the Salaf. So follow the path of the Salaf, may Allah grant you success. Yes. And Allah the Exalted knows best, and may Allah send prayers and peace upon our Prophet Muhammad, and upon his family and all his Companions.