It quoted Jaish al-Fatah as saying that "our leadership is aware of the hardships suffered by civilians in Aleppo due to the bombing and the siege carried out by the Syrian Army."
"After meeting our brothers, we will allow all those aged under 14 and over 55 to leave Aleppo if they each pay 150,000 Syrian pounds to support our brothers at the front," the leaflets read.
On October 20, the Russian "humanitarian pause" was introduced in Aleppo to ensure the safe evacuation of civilians from the eastern part of the city via eight designated corridors.
During the humanitarian pause, the al-Nusra Front terrorist group, currently known as Jabhat Fatah al Sham, prevented civilians from fleeing the city, attacking them instead.
Meanwhile, Chief of Russian General Staff Gen. Valery Gerasimov said that the Russia Defense Ministry will introduce a 10-hour humanitarian pause in Aleppo on Friday "to avoid the senseless [killing of civilian] victims."
Over the last several months, Aleppo has become a battlefield between government forces, jihadists, and numerous opposition groups.
Militant-held eastern Aleppo is encircled by government forces and the fighting has affected thousands of civilians still trapped in the city.