put somebody up to

US /pʊt ˌsʌmbədi ˈʌp tuː/
UK /pʊt ˌsʌmbədi ˈʌp tuː/
"put somebody up to" picture
1.

to encourage or persuade someone to do something, especially something mischievous or daring

:
His friends put him up to stealing the candy.
Who put you up to this crazy idea?