On September 24, muslims celebrate Eid al-Adha, also known as the Feast of the Sacrifice. The festival marks the end of the Hajj pilgrimage to Mecca and commemorates Prophet Abraham's readiness to sacrifice his son to show obedience to God. In Moscow, the service was held in three places: Old Mosque, the Memorial and the Cathedral Mosques. Russia's top Muslim Cleric Ravil Gainutdin conducted a religious service inside the newly restored Moscow Cathedral Mosque. Islam is the second largest religion in Russia, which has more than 7,000 mosques. Russia is home to a total of 23 million Muslims representing 38 peoples, according to the Council of Muftis. Look through this gallery by TASS to see how Russian muslims celebrated Eid al-Adha.