In English, the Mahatma and his mirror were preparing to leave

In English, the Mahatma and his mirror were preparing to leave, after that Mahatma comes to the blacksmith and says that I can give you three boons, tell me what do you want. Hearing this, the blacksmith becomes very happy and says that I will ask for such things which I need very much. He started thinking a lot and then says that I need to live till the age of 100 years.