The issue of burying more than one person in the same grave in Makkah

Question : May Allah bless you. I want to ask about Makkah; I mean, I have been there for a period of time and I saw the upper cemetery, I mean, they bury people there, I mean, after a few days they bury more in it. So is the land there, for example, as he said, according to his memory,

Answer : The lands, may Allah bless you, differ. In Makkah and elsewhere, the lands differ; some lands are hot and consume the flesh and bone quickly, while some are cold and do not consume it. However, some of the common people estimate it at forty years, and this has no validity. People have been found who were buried a long time ago and were found as they were.
Some people were found as they were, but in any case, as soon as they are exposed to the air, their bones and flesh become brittle. As for Makkah, since ancient times they have been burying people in a place like a grave and gathering them all together, except in another place where they bury each person individually. No one raises his hand until we are finished, people. This is not a question; I am speaking and you are disturbing us. If we are finished, in Makkah there used to be many epidemics.
In the past, until some of them said that hundreds would die in a single day. And they say that if it was "alfat."
"Alfat" means the lifting of the calamity, and the meaning of "alfat" is that a thousand people die in a day. This was with the smallness of the population, but great epidemics occurred, and they were unable to preserve their graves.
So they place this vault and put the dead in it. It was also told to me that they place something on it that destroys it quickly, like lime, in order to come to it, then they arrange the bones in one side of this vault and fill it up again. Yes, and there is nothing wrong with this need, because the Prophet (peace and blessings be upon him) gathered the dead in one grave on the day of Uhud.