It is narrated from Sayyiduna Umayr (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Allah Almighty has promised me that He will admit three hundred thousand of my Ummah into Paradise." Umayr said: "O Prophet of Allah, ask for more for us." Sayyiduna Umar (may Allah be pleased with him) said: "Enough, O Umayr." Umayr said: "O Ibn al-Khattab, what business is this of yours? What harm is it to you if Allah admits us into Paradise?" Sayyiduna Umar (may Allah be pleased with him) said: "Allah, the Majestic and Mighty, if He wills, can admit the people into Paradise with a single handful or a single scoop of the hands." The Prophet (peace and blessings be upon him) said: "Umar has spoken the truth."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14195