Ibn Abi-Zimra, David (1882). Aharon Wolden (ed.). The Responsa of the Radbaz (in Hebrew). Vol. 2. Warsaw.{{cite book}}: CS1 maint: location missing publisher (link), s.v. Part VII, responsum # 9 (first printed in Livorno 1652; reprinted in Israel, n.d.) (OCLC233235313)