Sayyidina Abdullah ibn Masud (RA) reported that they were about forty people in a tent with the Prophet (SAW). He asked them, “Would you love to become one-fourth of the people of Paradise?” They said, “Yes.” He asked, “Would you like to become half of those who inhabit Paradise? No one but a Muslim soul will enter paradise and you are not among the polytheists but as a white strand of hair on the skin of a black ox or a black strand of hair on the hide of a red ox.”
[Ahmed 3661, Bukhari 6528, Muslim 221,Ibn e Majah 4283]