Three representatives of the Muslim scholars will come to Rome in February or March to prepare for the meeting, the head of the Vatican's Pontifical Council for Inter-religious Dialogue, Cardinal Jean-Louis Tauran, told the Vatican newspaper L'Osservatore Romano this weekend.
He did not give a date for the larger meeting, except to say it would take place in the spring.
The agenda, he said, would cover three main topics: respect for the dignity of each person, interreligious dialogue based on reciprocal understanding, and instruction of tolerance among the young.
"The meeting with a delegation of some of the 138 Muslims, planned for Rome next spring, is in a certain sense historic," Tauran was quoted by L'Osservatore as saying.
Benedict angered Muslims with a speech on faith and reason in September 2006 in Germany in which he cited a medieval text that characterized some of the teachings of the Prophet Mohammed as "evil and inhuman," particularly "his command to spread by the sword the faith."
The pope later said he was "deeply sorry" over the reactions to his remarks and that they did not reflect his own opinions. The Vatican has been working ever since to improve relations with moderate Islam.
Thirty-eight Muslim scholars initially wrote to Benedict soon after his 2006 speech, thanking him for his clarifications and his calls for dialogue. But the Vatican never officially responded to that initiative, and a year later the number of signatories of a new letter had swelled to 138.
In the letter, the Muslim scholars, muftis, and intellectuals draw parallels between Islam and Christianity and their common focus on love for God and love for one's neighbor. They also note that such a focus is found in Judaism.