سَأَلَ زُرَارَةُ أَبَا عَبْدِ اللَّهِ ع عَنِ الصَّلَاةِ فِي الثَّعَالِبِ وَ الْفَنَكِ[1] وَ السِّنْجَابِ وَ غَيْرِهِ مِنَ الْوَبَرِ فَأَخْرَجَ كِتَاباً زَعَمَ أَنَّهُ إِمْلَاءُ رَسُولِ اللَّهِ ص أَنَّ الصَّلَاةَ فِي وَبَرِ كُلِّ شَيْءٍ حَرَامٍ أَكْلُهُ فَالصَّلَاةُ فِي وَبَرِهِ وَ شَعْرِهِ وَ جِلْدِهِ وَ بَوْلِهِ وَ رَوْثِهِ وَ أَلْبَانِهِ وَ كُلِّ شَيْءٍ مِنْهُ فَاسِدَةٌ لَا تُقْبَلُ تِلْكَ الصَّلَاةُ حَتَّى تُصَ
“Zurarah once asked abu ‘Abd Allah (a.s.), about foxes, fennec and squirrel and so on of hair. He (the Imam) then took out a book that he (the Imam) thought was of the dictations of the Messenger of Allah and it said, ’Salah (prayer) performed with hair of everything of inedible flesh is unlawful. Thus, Salah (prayer)