Litzman is Hasidic and believes that cutting his beard is forbidden by God.
NYPD rules usually require officers to be clean-shaven. The department makes exceptions for beards kept for religious purposes, but even then only allows 1 millimeter worth of growth.
"I don't understand what the problem would be," Litzman said.
NYPD spokesman Paul Browne said the department's rules are reasonable and Litzman was aware of them when he signed up.
Litzman was first cited in January for his unkempt beard. He was a month away from receiving his shield when he was fired.
"I always wanted to be a police officer," said Litzman, a 38-year-old father of five who speaks Hebrew and Yiddish and was once a paramedic.
His attorney, Nathan Lewin, said the police department knew when Litzman applied that he would not trim his beard.
And now, Lewin said, it's a case of religious discrimination.
"We're going to be deliberating and considering what the steps are that we're going to take," Lewin told The Associated Press on Saturday night.
The department hired its first Hasidic officer in 2006 and the force now has at least two dozen Orthodox Jewish officers.
Like observant Muslim and Sikh officers, Hasidic officers are allowed to keep their beards for religious reasons but must keep them neat and trimmed.
Manhattan Borough President Scott Stringer issued a statement Saturday saying he was "deeply troubled" by the firing.
"While the NYPD can exercise control over the personal appearance of its force in order to ensure that all officers are capable of performing their duties, they are also required to make a reasonable accommodation for religious beliefs," Stringer said.
He urged the police commissioner to reconsider the case.
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