Sallar Layya, Babban Sallah, Eid al-Adha (larabci-ar|عيد الأضحى|ʿīd al-ʾaḍḥā|lit da turanci Feast of the Sacrifice), kuma ana kiransa da "Sallar Yanka", shine biki nabiyu da musulmai ke gudanarwa a duk duniya a kowace shekara, dayan bikin shine ( Karamin Sallah), ana ganin wannan babbar yafi daraja acikin biyun. Allah yakarrama Annabi Ibrahim (Abraham) Allaihi Salam, ne bayan yamika wuya gareshi akan yarda da yanka dansa Annabi Ismail daomin bin umurni da Allah yabukace shi. Amma, kafin Annabi Ibrahim ya yanka dansa sai Allah ya aiko da babban rago yayanka, sanadiyar hakane ake yanka kuma ake raba namar gida uku, kaso daya, sadaka ga mabukata, nabiyu a rabawa yan'uwa, na uku wanda yayi layyar yaci abinsa. A kalandar musulunci Islamic lunar calendar. Ana so a musulce ka chanja hanya a dawo daga idi, watau Hanyar ta sauya akan Wanda abi a wurin zuwa. Sallar tana zuwa ne a kowace goma (10th) na watan Dhu al-Hijjah. A kuma kalandar duniya ta girigori ranar na canjawa a dukkanin shekara zuwa shekara, ta hanyar rage kwanaki goma shadaya (11).