The Date of the Demise of Hazrat Abu Zar (radhiyallahu ‘anhu):

Hazrat Abu Zar (radhiyallahu ‘anhu) passed away in Rabzah in the year 32 A.H. According some ‘Ulamaa, Hazrat Abu Zar (radhiyallahu ‘anhu) passed away during Zul Hijjah in the year 31 A.H.

(Siyar A’laam min Nubalaa 3/397, Usdul Ghaabah 4/437)

The Different Narrations Describing the Demise of Hazrat Abu Zar (radhiyallahu ‘anhu):

There are essentially two narrations which explain the manner in which Hazrat Abu Zar (radhiyallahu ‘anhu) passed away.