It is narrated from Sayyiduna Thawban (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "There are two groups of my Ummah whom Allah Almighty will protect from Hell: the group that will fight in Hind, and the group that will be with Isa bin Maryam."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18600