Some scholars claim that the expedition took place in
Nejd (a large tableland in the Arabian Peninsula) in Rabi‘ Ath-Thani or Jumada Al-Ula, A.H. 4 (or beginning of AH 5). They claim that it was strategically necessary to carry out this campaign in order to quell the rebellious Bedouins to prepare for the encounter with the polytheists, i.e. minor Badr Battle in Sha‘ban A.H. 4. However,
Safiur Rahman Mubarakpuri claimed that Dhat Ar-Riqa‘ campaign took place after the fall of Khaibar (and not as part of the Invasion of Nejd). This is supported by the fact that
Abu Hurairah and
Abu Musa Ashaari witnessed the battle. Abu Hurairah embraced Islam only some days before Khaibar, and Abu Musa Al-Ash‘ari came back from Abyssinia (
Ethiopia) and joined Muhammad at Khaibar. The rules relating to the prayer of fear that Muhammad observed at Dhat Ar-Riqa‘ campaign, were revealed at the Asfan Invasion. Scholars say that this took place after Al-Khandaq (the
Battle of the Trench). This period is too long (the average is seven intercalations in nineteen years rather than seven in 21), which means that his dates become progressively later moving back from the reform of the calendar in AD 632. Since the day of the week in the Muslim calendar advances by one or two days per month the discrepancy is resolved by pushing Caussin de Perceval's calculated dates back a month. ==Islamic sources==