Reference: Siyar A’laam an-Nubalaa – Volume 2, Page 578
On the authority of ‘Abbaas al-Jurayree, who said: I heard Abu ‘Uthmaan an-Nahdee say:
I hosted Abu Hurayrah for seven days; he, his wife and his servant would divide the night into thirds, [whereby] he would pray, then wake up the other who would then pray, and then wake up the other [who would then also pray].
