(1) It is reported by Muslim, through Ibn Numayr, no. 2393, in “The Virtues of the Companions,” chapter: “Among the Merits of Umar.” Bukhari records it in his Sahih, 7/21, in “The Virtues of the Companions,” chapter: “The Prophet’s saying, peace be upon him: ‘If I were to take an intimate friend …,’” transmitted via Abdan – Abd Allah b. Yunus – al-Zuhri – Ibn al-Musayyab – Abu Hurayra. He also cites it 12/365, in “The Vision,” chapter: “Drawing up one or two buckets from a well with a weak rope,” via Sa id b. Afi r – al-Layth – Aqil – Ibn Shihab – Sa id b. al-Musayyab – Abu Hurayra. He further reports it in the chapter “Seeking rest through sleep,” through Ishaq b. Ibrahim – Abd al-Razzaq – Ma ‑mar – Hammam – Abu Hurayra; and in “Book of Tawhid,” 13/378, through Busrah b. Safwan b. Jamil al-Lakhmi – Ibrahim b. Sa d – al-Zuhri – Sa id b. al-Musayyab – Abu Hurayra. qalib: a well whose earth is first overturned before it is lined with stones. gharb: the large bucket used with a water-wheel, larger than the thin-ribbed dhanub bucket. abqari: an epithet for anything that has reached the height of excellence in its category. atan: the resting-place where camels kneel after drinking their fill. The phrase “fa-darabû bi-atan” means that they and their camels drank to satiation, then made the beasts kneel and fixed an encampment around the watering place. (*) Further biographical sources: al-Tarikh al-Kabir 6/8; al-Jarh wa-l-Ta dil 6/5–6; Tahdhib al-Kamal, fol. 899; Tadhhib al-Tahdhib 3/25; Tahdhib al-Tahdhib 6/78–79; Khulasat Tadhhib al-Kamal, p. 256. (2) In the base manuscript the name is vocalized with an open b and r, a reading also adopted by Yaqut. Al-Ansab spells it instead with a closed b and r (Rihbut), a vocalization followed by the authors of al-Lubab and al-Lub.