Mas’ala 20941الأمShafi'ivol. 5, p. 315vol. 5, p. 315 وَلَا تَجُوزُ شَهَادَةُ الْوَلَدِ لِوَالِدِهِ، Read the whole chapterCopy with source On the map: Oaths of abstinence, zihar, li‘anCompare