Conversation so far:
When did Ruhollah Khomeini start opposing the White Revolution?
In January 1963, the Shah announced the White Revolution, a programme of reform. On 22 January 1963 Ruhollah Khomeini issued a strongly worded declaration denouncing the Shah and his plans.
What was some of Ruhollah Khomeini's declaration for opposing the white revolution?
Ruhollah Khomeini issued a manifesto that bore the signatures of eight other senior Iranian Shia religious scholars.
Did Ruhollah Khomeini face opposition for opposing the White Revolution?
On 5 June 1963 at 3:00 am, two days after this public denunciation of the Shah Mohammad Reza Pahlavi, Ruhollah Khomeini was detained in Qom and transferred to Tehran.
How long was Ruhollah Khomeini detained for in Qom and eventually Tehran?
Ruhollah Khomeini was kept under house arrest and released in August.

Question: What did he do after he was released?
Self-contained rewrite: What did Ruhollah Khomeini do after he was released from detainment in August?