And through this chain of transmission, from Ali bin Ibrahim, from Ali bin Muhammad Al-Qasani, from Muhammad bin Muhammad, from Ali bin Bilal: He (Ali bin Bilal) wrote to Imam عليه السلام asking about the use of jareedah (fresh palm branches) if they could not be found - whether something else could be used in its place in a location where palm trees were unavailable. Imam عليه السلام wrote in response: "It is permissible to substitute something else if jareedah is unavailable, but jareedah is better."