Yazid bin Zuray' (may Allah have mercy on him) said: Rawh bin al-Qasim (may Allah have mercy on him) narrated the hadith to us, and he mentioned this same hadith.
In it he added: I said to Uqbah: "May (the dead) be buried at night?" He said: "Yes, Abu Bakr was buried at night."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6914