The ruling on designating Monday or Thursday for the prayer for rain

Question:
He says: Honorable Shaykh, may Allah grant you success. It is known that tomorrow is the prayer for rain, and we have not been accustomed to praying it on any day other than Monday or Thursday. A debate or discussion has taken place among some students of knowledge, and he asks: Do Monday and Thursday have a special virtue over other days?

Answer:
I do not know of any special virtue for them, but it is something people have become accustomed to. Perhaps they take it that deeds are presented on Monday and deeds are presented on Thursday, and the Prophet (peace and blessings be upon him) used to fast on Monday. Perhaps they take from this the virtue of the prayer for rain, but there is no evidence for this. So on any day, according to need, on any day the Muslims need the prayer for rain, they pray for rain. And the prayer for rain became on Wednesday because on Thursday they were accustomed to sleeping; Thursday is a holiday and they were accustomed to sleeping, so they made it Wednesday, which is a working day and a day of activity.