A man performed the Hajj of Islam, and another man appointed him to stone the pillars. He stoned for himself and then stoned for his appointer. Is his stoning valid?

Question:
He says: Honorable Shaykh, may Allah grant you success. He says: A man performed the Hajj of Islam, and another man appointed him to stone the pillars during the days of Tashriq. He stoned the pillar for himself and then immediately stoned for his appointer. Is his stoning valid, or must he stone all the pillars for himself and then return to stone for his appointer? This is what the jurists said. Or some of the jurists, but this is difficult and there is no evidence for it.

Answer:
There is no evidence for it. So if he stoned the small pillar for himself, he stoned it for his appointer, and if he stoned the middle pillar, likewise for himself and then for his appointer, and the large pillar likewise. This is easier for people, especially during the crowd and the likelihood of error.