Two District restaurateurs who helped authorities prosecuting D.C. Mayor Marion Barry -- Hassan Mohammadi and Sammad Arshadi -- were sentenced yesterday in federal court on drug charges.

Mohammadi, 35, who co-owned the Pardis Cafe on M Street NW, was sentenced to three months in prison for conspiracy to possess cocaine, plus one year of supervised release after prison.

He testified at the mayor's trial last summer that he supplied Barry with cocaine at least 30 times at Mohammadi's home, at his restaurant and in the Bahamas, and smoked opium with the mayor.

U.S. District Judge Thomas Penfield Jackson also sentenced Arshadi, who had pleaded guilty to cocaine possession in June, to one year's probation and ordered him to pay some delinquent taxes.

Both Mohammadi and Arshadi could have faced up to one year in prison on the current charges.

The jury at Barry's trial declined to convict Barry on any of the charges relating to Mohammadi's testimony.

Before the trial, prosecutors named Arshadi, who once managed a Georgetown restaurant, as a potential witness, but he was never called to testify. He has been identified in other court proceedings as a friend of Mohammadi's and was alleged to be an occasional supplier of cocaine to Barry.

In an unrelated case, he pleaded guilty last year in federal court in Alexandria to interstate transportation of cocaine.

The mayor was convicted in August of one misdemeanor count of cocaine possession and received a six-month prison sentence.

He was acquitted of another possession count, and the jury failed to reach a verdict on 12 other charges.

In yesterday's hearing, Jackson also recommended against deportation for Mohammadi and Arshadi, who are both Iranian nationals.

Mohammadi pleaded guilty in 1982 to conspiracy and fraud for his part in a scheme to bribe a U.S. immigration official to approve false immigration applications.

He was sentenced to four years' probation and fined $20,000 for that offense.