you can't. the tea is easy to get.
Celadon City look for the Celadon Mansion it has a sign near it inside talk to the old woman on the first floor to get your Tea.
In the bottom floor of the Celadon Mansion.
You go to Celadon city and get the tea from the celadon mansion from the old woman you give it to the guards they let you go saffron city
underground pass from lavender town to celadon
Go to Celadon city and enter the Celadon Mansion. On the first floor of the mansion, there should be an old lady who will give you tea.
In celadon city there's a lady in the celadon mansion who will give you TEA if you share the TEA with the security guard he will let you pass.
In the Celadon Mansion in Celadon City, an old woman offers you some tea. Take the tea and give it to any one of the four guards blocking your way to Saffron City and they will let you through.
go to celadon city and enter the celadon mansion it has a sign near it then talk to the old lady near the Pokemon in the mansion she will give you the tea.
Just go to celadon dpt and by a fresh water to give to him instead
In Celadon City you need to go into the Celadon Mansion (Front Door) and talk to the little old lady babysitting the Pokemon she will give you the tea
go inside the celadon mansion in celadon city and the first room on your left there will be an old lady surrounded by pokemon. talk to her and she'll give you the tea