The group that sponsored recent demonstrations here in support of the Ayatollah Ruhollah Khomeini denied yesterday what it described as rumors that it got money or instructions from Iran for these activities.

"We have not gotten and will never get any financial help or instruction from Iran," said Abbas Esfahani, a student at Kansas State University, who identified himself as a spokesman for the Moslem Students Association (Persian Speaking Group).

"Our money comes from contributions and donations by our members . . ." esfahani said in a telephone interview. "We don't accept help from anybody outside. We are an independent organization and intend to remain that way."

Esfahani said the student association sponsored the pro-Khomeini group in the demonstrations here July 27 that led to 192 arrests. He said the association also sponsored the recent hunger strike in front of the White House and the pro-Khomeini demonstration held here Thursday. The association participated in the demonstration here Friday in which support was indicated for both Khomeini and the Palestine Liberation Organization, Esfahani said.

The student association held a press conference yesterday to refute any charges that it was receiving assistance from Iran.

On Thursday, The Washington Post reported that law enforcement investigators say at least $5 million has been funneled into this country from sources in Iran to support Moslem revolutionary protest and propaganda efforts here.

According to The Post, informed sources said that funds have been sent here from Iran through diplomatic pouches, international couriers and foreign banks, and also raised through the sale of hashish and heroin brought into the United States.

The Post story quoted sources as saying that the money sent from Iran is part of an effort to export Khomeini's revolutionary Islamic ideology to other Moslems, defend Khomeini's regime and embarrass his critics, such as the U.S. government.

The Post story also quoted law enforcement sources as saying they are convinced that one of the chief local disbursers of funds and the key coordinator of Moslem protests here is Bahram Nahidian, a Georgetown rug merchant. Nihidian has denied the allegations.

Students association spokesman Esfahani said yesterday that Nahidian is not a member of the association. He "has nothing to do with the organization," Esfahani said.

Esfahani said a $3,000 bond posted Friday for the release of one arrested demonstrator was raised through small donations.

He said his organization is committed to stopping what he termed U.S. government-sponsored "plots and conspiracies" against the Iranian revolution. ". . . We will try and do our best to protect our religion and our Islamic revolution," he said.