Musannaf Ibn Abi Shaybah 6246 — A slave leading the prayer

Abu Sa'id, the freed slave of Abu Usayd, said: I was a slave when I got married, and I invited some of the Companions, among whom were Sayyiduna Abu Dharr, Sayyiduna Ibn Mas'ud and Sayyiduna Hudhayfah (may Allah be pleased with them). When the time of prayer came, Sayyiduna Abu Dharr stepped forward, and he was told: "Stay back." He turned to his companions and said: "Is it so?" They said: "Yes." Then they put me forward, and I led them in prayer although I was a slave.