1618. hadíth
وَ فِي رِوَايَةِ اَلْقَاسِمِ بْنِ مُحَمَّدٍ اَلْجَوْهَرِيِّ: "أَنَّ اَلْبَقَرَةَ تُرْبَطُ عِشْرِينَ يَوْماً".
And in the narration of Al-Qasim bin Muhammad Al-Jawhari: "The cow is to be confined for twenty days."
Man Lā Yaḥḍuruh al-Faqīh
Shaykh Muḥammad b. ʿAlī al-Ṣaduq
Book of Livelihood
Chapter on Hunting and Slaughtering
A fordítás angol nyelvű (Bab Ul Qaim Publications), forrás: Thaqalayn.net.