Reality Show Put T.I. Back In Prison

T.I. was hauled back to prison because prison officials believed he had people from his reality show on the bus that took him to his halfway house ... this according to official documents obtained by TMZ.

According to the incident report, when T.I. was released from prison on August 31, he was under specific instructions to be transported to his halfway house -- where he would serve the remaining 30 days of his sentence -- but he could ONLY travel with his wife ... and he wasn't allowed to conduct business on the bus.

But prison officials say T.I. also had his manager, along with 2 VH1 producers on board. Prison officials believe T.I. and his crew were yakking about his reality show as well as a book -- a violation of the rules.