Nasr, Sameera Taher Mohammad, et al. “The Shia Perspective on the Ijtihads of the Companions-May Allah Be Pleased With Them- The Shura System During the Era of Umar: A Case Study”. Journal of Posthumanism, vol. 5, no. 3, Apr. 2025, pp. 546–559, doi:10.63332/joph.v5i3.765.