Musnad Abu Ya'la al-Mawsili 1:93

Amr ibn Muhammad al-Naqid narrated to us, Yazid ibn Harun narrated to us, Hammam ibn Yahya narrated to us, from Farqad al-Sabakhi, from Murrah al-Tayyib, from Abu Bakr al-Siddiq, from the Prophet (peace be upon him), who said: "The deceitful, the miser, the one who reminds others of his favors, and the one who treats his subordinates badly shall not enter Paradise." And the first to enter Paradise is the slave, if he obeys Allah and obeys his master.